Hair Care Research Articles

Nanotechnology in Cosmetics: An Overview

Nanotechnology is revolutionizing the treatment of skin diseases in cosmetics, offering safe and targeted delivery of active medications and cosmetic ingredients. The use of carrier systems in nanotechnology improves skin penetration and sustained drug action. Formulators are using technology exclusive to cosmetic products, such as vesicular, particulate systems, emulsions, nano capsules, nanotubes, nanocrystals, and dendrimers. Nanomaterials are also used in hair care products and nail formulations. Nanomaterials are used in modern cosmetic products, particularly in sunscreens due to their ability to protect the skin from harmful UV radiation which is carcinogenic. This review explores nanotechnologies in the cosmetic industry and their potential as next- generation smarter carrier systems. It highlights the advances in nano cosmeceuticals and the applications of nanotechnology in cosmetics. It also focuses on the regulations of nanotechnology in cosmetics and describes various routes of exposure to nano particles in the human body. Keywords: Nanotechnology, cosmetics, nanoparticles, regulations, advances

Formulation and Evolution of Herbal Shampoo

Shampoos are one of the cosmetic products used in daily life. Synthetic preservatives and detergents have sometimes been the cause of adverse effects among consumers. A more radical approach in reducing the synthetic ingredients is by incorporating natural extract whose functionality is comparable with their synthetic ingredients.this herbal shampoo was formulated using natural ingredient like Fenugreek seeds), Acacia concinna (shikakai), Sapindus mukorossi (reetha), Ocimum sanctum (tulsi), Aloe vera (aloe), Hibiscus rosa sinensis (china rose), Azadirachta indica (Neem), Lawsonia inermis (henna),Citrus lemon (lemon), with proven efficacy of hair care preparation is prepared. The combination of several such ingredient of herbal origin has made it possible to secure highly effective dry powder shampoo. The formulation at laboratory scale was done and evaluated for number of parameters to ensure its safety and efficacy.The main obeject of this present study is to prepare and evaluate an herbal shampoo and determine physiochemical function that emphasizes on safety.which is use to remove grease, dirt, dandruff..

A Review on Preparation and Evaluation of Hair Care Product (Hair Dye )

Herbal based hair dyes are being preferred on large Scale, due to the vast number of advantages it exerts to Overcome the ill-effects of a chemical based hair dye. We Have attempted to prepare and standardize this Preparation to ensure its quality as well as stability Aspects.

Prevalence and associated factors for isolated Malassezia species in patients with Dandruff in Mekelle City, Tigrai, Ethiopia.

Dandruff, a condition caused by lipophilic Malassezia fungi, is an excessive shed of dead skin cells from the scalp. Effective preventive and curative measures of the condition depend on knowledge and understanding of the prevalence of the condition, the common etiologic species, and the associated factors. This study aimed to investigate the prevalence, common etiologic species, and associated factors of Malassezia infection in Mekelle City, Ethiopia. A facility-based cross-sectional study was conducted from February 2019 to June 2020 involving 217 participants who were visiting dermatology clinics to seek treatment for dandruff conditions. Information on the socio-demographic characteristics and hair care behaviors of the participants was obtained. Isolation and identification of Malassezia species from scalp scrapings using cultural and biochemical tests were carried out. Out of the 217 participants with dandruff, 111 (51.15%) were positive for Malassezia fungi. One hundred forty (140) Malassezia isolates were collected from the 111 positive participants. Further study of the isolates yielded three etiologic species: Malassezia globosa (67.15%), M. furfur (21.70%), and M. restricta (12.15%). Demographic characteristics, namely gender (AOR = 2.605; 95%CI: 1.427 - 4.757) and age (AOR = 2.667; 95%CI: 1.046 - 6.795), as well as hair care behaviors, namely use of hair oil (AOR = 2.964; 95%CI: 1.288 - 6.820), were associated with the presence of Malassezia species. However, the use of anti-dandruff shampoo (AOR = 2.782; 95%CI: 1.301 - 10.993) was negatively associated with the presence of Malassezia species among the participants with dandruff conditions. These findings open opportunities to devise effective prevention, management, and control measures for Malassezia-based dandruff conditions.

Professor Namburi Hanumanta Rao: A master innovator who shaped Ayurveda Pharmaceutics

Abstract Many legendary Ayurvedic physicians in Andhra Pradesh have dedicated their lives to patronizing Ayurveda on par with the Allopathic system, and some contributed to Ayurveda through their research, practice, orientation, teaching, manufacturing of medicines, and publication. Namburi Hanumanta Rao (NHR) is a man with all the above skills. Prof. Rao is considered a great Ayurvedic scholar and pioneer in Rasashastra. Prof. Rao did his research in many branches of Ayurveda and had good practice, orientation, teaching ability, skills in manufacturing medicines, and publications. Prof. Rao contributed a lot to propagating Ayurveda on scientific lines. Prof. Rao established Dr. Rao’s Herbal Pharma Pvt. Ltd. in 1987. Diabetes, arthritis, and hair care are three significant components of his pharmacy. He published works like the Manual of Numburi Phased Spot Test (Qualitative standardization of Bhasmas and Sindhuras), Panchabhuta theory (A study of Panchabhuta at the molecular level), and the Nyaya Vaiseshika theory of the Evolution of the Universe closely correlates with the Big Bang theory of modern scientists. He established The Academy of Ayurveda, Sevaniketan, and Yoga Samaj organizations. He innovated many new techniques in Rsasasastra. NHR was a member of many governments and voluntary organizations, received many awards, presented scientific papers in many national and international seminars, visited foreign countries, and served to enrich the Ayurvedic system of medicine in the country and abroad. He was a highly respected personality whose life can be summarized with the quote, “Be Ayurvedist; be Proud of it.”

The Genomic Variation in Textured Hair: Implications in Developing a Holistic Hair Care Routine

Human hair is characterised by variability, determined by genetic and macromolecular factors. Whilst the European hair type has been a focus of extensive research, Afro-textured hair care faces challenges created by insufficient knowledge of its properties. Applications of hair care products that are incompatible with Afro-textured hair frequently have detrimental effects on the scalp. This highlights the need for partnerships to bridge the gap between research and hair care practices and address challenges related to Afro-textured hair. In this review, we performed data mining of the existing literature and in silico network analysis of the biomarkers relevant to Afro-textured hair. The approaches to hair maintenance are highlighted in the context of hair anatomy and growth cycles, organisation of keratins, surface lipids, and chemical bonds. We discuss a range of biomarkers affecting hair fibre’s shape and mechanical strength, with the gene interactive network pointing to the hierarchical organisation of important traits, notably hair shaft diameter, keratinization, and hair follicle patterning, which likely contribute to the increased sensitivity of hair to extrinsic factors. We propose that a better understanding of the genetic traits, molecular structure, and biomechanics of Afro-textured hair is required to initiate more effective hair care solutions that would benefit the wider population.

Triethanolamine-modified poloxamer temperature-sensitive hair care gel for intelligent controlled release of sodium thioglycolat

Abstract A triethanolamine-modified poloxamer temperature-sensitive hair care gel was formulated in order to reduce the adverse health effects associated with sodium thioglycolate (TGA(Na)), the active component in hair treatment agents, while maintaining excellent efficacy. It was found that TEA-3 gelled at 32 °C with a triethanolamine concentration of 3 %. This formulation exhibited a reversible phase transition, transitioning to a solid state upon contact with the scalp (>32 °C) and reverting to a liquid state when in contact with hair (<32 °C). The release behavior of TGA(Na) from the gel was assessed by both in vitro release studies and transdermal experiments. In addition, it was observed that the triethanolamine-modified poloxamer gel exhibited improved hair care efficiency compared to conventional hair care agents. These results suggest that the triethanolamine-modified poloxamer gel is a promising alternative to conventional hair care products, offering improved efficacy while minimizing potential adverse health effects.

Exploring the Therapeutic Potential of Jujube (Ziziphus jujuba Mill.) Extracts in Cosmetics: A Review of Bioactive Properties for Skin and Hair Wellness

Jujube (Ziziphus jujuba Mill.), native to Southern Asia, stands out for its significant nutritional and therapeutic properties. Its adaptability and resilience have enabled its global cultivation, highlighting the necessity for comprehensive scientific research to fully harness its potential. Rich in bioactive compounds like flavonoids, polyphenols, vitamin C, polysaccharides, tannins, and saponins, jujube extracts exhibit notable antioxidant, anti-inflammatory, antimicrobial, and wound healing properties. These qualities have made jujube a popular ingredient in various skin and hair care formulations. The versatility of jujube extracts, along with their synergy with other herbal active ingredients, enables the development of targeted personal care solutions. These solutions address a range of concerns, including anti-aging, UV protection, brightening, moisturizing, and calming effects, as well as promoting hair health. Despite its potential, research on the cosmetic applications of Z. jujuba is still in its early stages, with only one clinical trial to date focusing on its skin-brightening effects. This review aims to consolidate the current and emerging research on the applications of jujube in conventional and medical cosmetics, highlighting its potential in enhancing skin and hair wellness. By providing a comprehensive overview, it seeks to pave the way for further studies and innovations in utilizing jujube for personal care.

Current trends in hair care in men

Hair care is essential for men for a variety of reasons, spanning from esthetics to overall health. A clean scalp reduces the risk of hair concerns in men such as seborrheic dermatitis and bacterial infections. Engaging in regular hair care routines can be a form of self-care, contributing to a sense of well-being and personal satisfaction. Proper hair care can also help reduce the risk of damage and hair loss. Avoiding harsh treatments and using appropriate products can preserve hair health and prevent excessive shedding. A diet rich in vitamins and minerals supports healthy hair growth. This review discusses hair cosmetics and its importance in men.

Exposure of young German adults to the anti-dandruff agent climbazole from 2002 to 2022: Analysis of specific biomarkers in urinary samples

The fungicide climbazole is mainly used as an anti-dandruff (AD) agent in cosmetics, such as shampoos or other hair care products. Consequently, an exposure of the general population seems likely because many people suffer from dandruff. We have analyzed urine samples from the German Environmental Specimen Bank (ESB) for two specific climbazole biomarkers, namely (OH)2-climbazole and cx-OH-climbazole, in samples collected in the years 2002, 2007, 2012, 2017 and 2022. (OH)2-Climbazole was determined diastereoselectively, hence three analytes are discussed ((OH)2-climbazole 1, (OH)2-climbazole 2 and cx-OH-climbazole). The study population consisted of 300 students (150 male, 150 female) aged between 20 and 29 at the time of sampling from Halle/Saale in Germany. Most samples under scrutiny did not contain any climbazole metabolites in levels above the limit of quantification (LOQ, 0.5 μg/L for either analyte), only in 16 samples at least one analyte could be quantitated. Even the sample with the highest metabolite concentrations (10.23 μg/L (OH)2-climbazole and 2.53 μg/L cx-OH-climbazole) barely reached the urinary concentrations found in an excretion kinetics study after the typical application of a climbazole-containing shampoo in three volunteers. As a result, estimated daily intakes (max. 1.8 μg/kg bw/d) lay below the subchronic NOAEL (15 mg/kg bw/d) and NOEL (5 mg/kg bw/d) by a factor of more than 8300 and 2700, respectively. The evaluation of the climbazole burden of the general population gives valuable insights for the authorities on the effect of legal restrictions.

A Study on the Effects of Socio-Cultural Pressure and Health Beliefs on Scalp and Hair Care Awareness and Behavior

Purpose: In modern society, with economic development and improvement of living standards, beauty is no longer solely aimed at physical appearance, but there is a lot of interest in scalp and hair care based on health. This study aims to investigate the influence of socio-cultural pressure and health beliefs on the perception of scalp and hair care.
 Method: In modern society, with economic development and improvement of living standards, beauty is no longer solely aimed at physical appearance, but there is a lot of interest in scalp and hair care based on health . This study aims to investigate the influence of socio-cultural pressure and health beliefs on the perception of scalp and hair care.
 Results: Pearson's correlation analysis was performed to determine the correlation between the variables. All the variables showed a significant positive correlation with each other. Next, multiple regression analysis was conducted to determine the effects of scalp and hair sociocultural pressure and health beliefs on perception and behavior of scalp and hair care, and it was found that sociocultural pressure from acquaintances, sociocultural pressure from media, intention to use, and maintenance had a significant positive effect on Perception and Behavior of scalp and hair care. Maintenance (β=.403, p<.001), sociocultural pressure from acquaintances (β=.246, p<.001), sociocultural pressure from the media (β=.240, p<.001), and intention to use (β=.129, p<.05) were found to affect perception and behavior of scalp and hair care.
 Conclusion: In order to improve 'Perception and Behavior of Scalp and Hair Care', it can be interpreted that it is necessary to pay attention not only to scalp and hair health beliefs but also to socio-cultural pressures. It can be said that this study proves that idealized appearances in the media and relationships can influence not only behaviors such as dieting, but also individuals' perceptions and actual behaviors regarding scalp and hair.

Revelation the sea's secret: Seaweed's rise as a potent cosmetic ingredient

Due to their bioactive compounds with beneficial properties, seaweeds have high potential in cosmetics science and they are highly appreciated not only because of variability but due to a multitude sources. In this review, we have elaborated on the multifaceted roles of seaweed-derived ingredients used in skin and hair care formulations focusing both on their biological components as well as extraction processes resulting in therapeutic properties. Here, the effectiveness of seaweed extracts in moisturising, anti-ageing and sun protection applications are discussed as well as sustainability and suggestions for future directions. This review highlights the importance of seaweeds establishment as a natural ingredient, effective properties and expected sustainability on contemporary cosmetic formulations through state-of-art scientific evidence providing promising ways to modernizing processes in the beauty industry.

Overview on Nanomaterials for Nanocosmetics

One of the scientific areas with the highest growth right now is nanotechnology. The development of nanocosmetics through the use of nanoscale materials has become more popular in recent years. Due to distinct structures, chemical, physical, physiochemical, and functional properties - most of them are absent in their non-nanoscale forms - some nanomaterial types are extremely appealing for use in the cosmetics sector. Regardless of their kind, form, morphology, or content, nanomaterials have two primary purposes in cosmeceutical inventory [1]: nano-constructs as (UV) filters, and [2] nanostructures as biologically active components for topical applications and other treatments associated with cosmeceuticals, such as moisturizers, skincare, makeup, sunscreen, and hair care products. As Ultraviolet filters or Ultraviolet protectants, various types of nanoparticles, such as silver, gold, titanium, and zinc, have been employed in the former scenario to hinder or to Utilize UV radiation and shield the layer beneath the skin from damaging consequences. Nanoliposomes are the delivery systems used in the 2nd concept usage. Therefore, next-generation cosmeceutical solutions for blossoming beauty that offer enhanced skin hydration, bioavailability, agent stability, and regulated UV occlusion have been highlighted as potentially becoming nanomaterial-loaded nanocosmetics. In light of the criticisms mentioned earlier and the potentialities of nanomaterials, we first examined the benefits of using nanoliposomes and nanoparticles as UV filters and delivery systems. The work's second split discusses the safety and legal implications of nanoparticles employed in compositions. Concluding remarks and suggestions for further study round out the work and enable material scientists to securely utilize nanoparticles in large-scale commercial goods.

Development and in vitro Evaluation of Nanoemulsion-based Polyherbal Hair Serum Formulations for Leave-in Hair Treatments

Background: Hair is a prominent physical feature that is found in all mammals. Different hair types will display different hair physicochemical properties (colour and appearance), mechanical resistance and reactivity to chemical agents and surface properties. Objectives: This study aims to prepare polyherbal-based hair serum to conduct stability tests and in-vitro evaluation tests to assess the efficacy of hair serum on different types of human hair tresses for the purpose of leave-in hair treatments Methods and Material: The hair care formulations, such as hair serum, were prepared and their stability was evaluated through a series of tests. The stability tests were conducted by evaluating the organoleptic properties of the formulations, such as colour, odour, surface appearance, consistency, and clarity, under various environmental conditions over a period of four weeks. Results: The relative viscosity of the hair serum is 7.84mPa/s, relative density is 0.997g/ml, and an average particle size is 1079 ± 21.22 μm. Over the course of 4 weeks, the nanoemulsion-based hair serum was stable between 25 – 40 °C and away from direct sunlight exposure. Conclusion: The formulated polyherbal hair serum can be used as a leave-in treatment to maintain hair’s moisture balance while improving hair combability. Further improvements in the hair product formulation can be made in the future to increase their potential for commercialisation

Emerging Applications of Herbal-Based Nanocosmeceuticals for Beauty and Skin Therapy

: Herbal cosmeceuticals are a rapidly expanding sector of the personal care industry, and their use has greatly expanded over time. The advancement of research and development is demonstrated by nanotechnology, which boosts product efficacy by delivering innovative solutions. The application of nanotechnology is growing in the field of cosmeceuticals to address numerous shortcomings of conventional herbal products. Lower penetration and high compound instability of various cosmetic products for prolonged and enhanced compound delivery to beauty-based skin therapy are the main problems with the use of phyto-based cosmeceuticals. Nanosized delivery technologies are currently being used in cosmeceutical industries and products for prolonged and improved delivery of phyto-derived bioactive chemicals to solve these drawbacks. The aseptic sensation of many cosmeceutical products is improved by nanosizing phytocompounds, which also improve skin-protective properties and sustained delivery. Nanocosmeceuticals are now commonly utilized on skin, hair, lips, and nails to treat disorders including wrinkles, photoaging, hyperpigmentations, dandruff, hair damage, chapped lips, etc. Some of the cutting-edge nanotechnologies now being used for improved delivery of the phytoconstituents in skin care therapy include liposomes, ethosomes, glycerosomes, transferosomes, niosomes, phytosomes, nanostructured lipid carriers, solid lipid nanoparticles, polymeric nanoparticles, nanoemulsions, nanogels, etc. The advantages of these novel nanocarriers include improved skin penetration, controlled and prolonged drug release, increased stability, site-specific targeting, high entrapment efficiency, and improved bioavailability. Several phytoconstituents such as curcumin, aloe vera, resveratrol, lycopene, tocopherol, quercetin, catechins, and lutein have been successfully nanosized by employing various delivery technologies and incorporated in various gels, lotions, and creams for skin, lip, hair, and nail care for their sustained effects. The present article primarily focuses on the use of phytocompounds in various cosmeceutical products, diverse classes of innovative nanocarriers employed for delivering herbal nanocosmeceuticals, and the use of various phytobioactive compounds in novel nanocosmeceutical formulations to improve skin-based therapy.

Application of the upcycling trend using ultrafiltrate of water from the production of collagen from fish skin in hair care cosmetics.

The aim of the research problem of the article was to try to popularize the upcycling trend in the production of sustainable cosmetics and to confirm their effectiveness. The development of recycled raw materials is a new discovery in the chemical industry. Manufacturers emphasize the production of more environmentally friendly raw materials. Conscious consumers choose cosmetics whose production is based on sustainable development. Instead of throwing away waste from various industries, let us use it to produce active substances used in hair cosmetics. The production of the collagen series was created in accordance with the principles of upcycling, which involves obtaining collagen water, which is waste generated during the production of supplements. The main goal of the work was to learn cosmetic recipes for styling, washing and conditioning hair based on collagen waste, as well as to compare the results of people using the product in question. The aim of the study was also to demonstrate the effectiveness of the treatment in preventing split ends and hair breakage, usually caused by mechanical stress (brushing), as well as to confirm the effectiveness of other tests. The article presents procedures and parameters confirming the effectiveness of treatment with the tested hair products. The following tests were carried out: hair thickness and density, colour uniformity, shine factor and scalp hydration. All parameters numerically confirmed the beneficial effects of products containing collagen water used in hair care.

Microplastics in Cosmetics: Open Questions and Sustainable Opportunities.

The cosmetic industry is now changing or rather having an ecological transition in which formulations such as creams, lotions, and powders for make-up, skin and hair care must not contain microplastics, now a taboo word in this field. Nowadays, many companies are intensifying their research and development (R&D) work to align with recent and future legislation that provides for their elimination to safeguard the ecosystem. The production of new eco-sustainable materials is currently a hot topic which finds its place in a market worth above 350 billion dollars which will reach more than 700 billion dollars in a very short time. This review offers an overview of the main advantages and adverse issues relating to the use of microplastics in cosmetics and of their impact, providing an insight into the properties of the polymeric materials that are currently exploited to improve the sensorial characteristics of cosmetic products. In addition, the various regulatory restrictions in the different geographical areas of the world are also described, which is matter for reflection on future direction. Finally, a prospective vision of possible solutions to replace microplastics with sustainable alternatives complete the picture of the next generation personal care products to support decision-making in the cosmetic marketplace.

An Examination of the Potential Hair Damage Caused by Coconut Oil’s Dark Side

The moisturizing and nourishing qualities of coconut oil, a popular hair care product, have been praised. On the other hand, an increasing amount of data indicates that using coconut oil incorrectly or excessively can harm hair. This paper attempts to provide an overview of the available data about the possible harm that coconut oil may cause to hair, including pore blockage, protein accumulation, and moisture imbalance. A thorough review of the literature shows that the high protein content and thick, greasy texture of coconut oil can lead to clogged pores, inflammation, itching, and hair loss in addition to weighted-down hair, frizz, and breakage of the hair. Moreover, overusing coconut oil can throw off the natural moisture balance of the hair, causing frizz, brittleness, and dryness. This review emphasizes the need to use coconut oil with carefully to prevent potential harm to hair and offers safe usage guidelines.

Hair treatment products containing pigeon pea oil as chemical properties and anti-oxidant activity

The comparing small type (T9) and big type (ICP 7035), which were extracted by hexane maceration, this study looks at the properties of pigeon pea oil in hair treatment products. It finds that the percentage yield of big seed (ICP 7035) oil is higher than that of small seed (T9) oil, at 9.64 ± 0.10 and 9.32 ± 0.08, respectively. A study on the chemical properties of the oil revealed values for saponification, acidity, iodine, and peroxide. In all trials, T9 outperformed ICP 7035 in terms of test results, demonstrating the presence of fatty acids in the molecular components of triglycerides. Compared to ICP 7035, T9 had a lower molecule weight and a lower saturation level, making it less susceptible to oxidative lipid disorder and the tendency to deplete oil. The flavonoid content of T9 is higher than that of ICP 7035, equal to 27.76 ± 0.65 mg GAE g-1 extract and 25.90 ± 0.69 mg GAE g-1 extract, respectively. The flavonoid content of T9 is higher than that of ICP 7035, equal to 20.67 ± 0.58 mg QE g-1 extract and 18.76 ± 0.65 mg QE g-1 extract, respectively. The DPPH test showed that T9 was a stronger antioxidant than ICP 7035, with amounts of 0.26 ± 0.04 mg g-1 of extract and 0.35 ± 0.05 mg g-1, respectively. The development of hair care products revealed that a mixture containing the optimal dosage of T9 effectively ensured smooth hair lines and prevented microorganism contamination in all recipes. GRAPHICAL ABSTRACT HIGHLIGHTS Pigeon Pea Oil in Hair Care Products Comparison of T9 and ICP 7035 oil properties. ICP 7035 yield was higher than T9 yield. Chemical properties of oil included saponification, acidity, iodine, and peroxide. T9 oil had better phenolics, flavonoids, and DPPH values than ICP 7035. T9-rich mixtures in hair care products ensure smooth hair lines and prevent microorganism contamination.

Bleached Hair as Standard Template to Insight the Performance of Commercial Hair Repair Products

The increasing demand for effective hair care products has highlighted the necessity for rigorous claims substantiation methods, particularly for products that target specific hair types. This is essential because the effectiveness of a product can vary significantly based on the hair’s condition and characteristics. A well-defined bleaching protocol is crucial for creating a standardized method to assess product efficacy, especially for products designed to repair damaged hair. The objective of this study was to create a practical bleaching protocol that mimics real-world consumer experiences, ensuring that hair samples exhibit sufficient damage for testing. This approach allows for a reliable assessment of how well various products can repair hair. The protocol serves as a framework for evaluating hair properties and the specific effects of each product on hair structure. Color, brightness, lightness, morphology, and topography were primarily used to understand the big differences in the hair fiber when treated with two repair benchmark products, K18® and Olaplex®, in relation to the Bleached hair. The devised bleaching protocol proved to be a fitting framework for assessing the properties of hair and the unique characteristics of each tested product within the hair fiber. This protocol offers valuable insights and tools for substantiating consumer claims, with morphological and mechanical methods serving as indispensable tools for recognizing and validating claims related to hair. The addition of K18® and Olaplex® demonstrated an increase in hair brightness (Y) and lightness (L* and a*) in relation to the Bleached samples, which were considered relevant characteristics for consumers. Olaplex®’s water-based nature creates a visible inner sheet, effectively filling empty spaces and improving the disulfide linkage network. This enhancement was corroborated by the increased number of disulfide bonds and evident changes in the FTIR profile. In contrast, K18®, owing to the lipophilic nature of its constituents, resulted in the formation of an external layer above the fiber. The composition of each of the products had a discrete impact on the fiber distribution, which was an outcome relevant to the determination of spreadability by consumers.