Abstract
With the increasing concern of public health and consumers’ awareness, non-chemical cosmetics are booming worldwide. Plants are important in formulating natural and non-chemical cosmetic products, thus making the plant materials highly potential to be developed into cosmetic formulating ingredients. However, colour interference is a very critical item in producing cosmetic. The plant extracts which are normally dark brown and greenish colour, might spoil the appearance of the products if they are added in cosmetic formulation. In order to solve this problem, an activated carbon granule tea bag system was assembled and batch experiments were conducted as a mechanism to eliminate the intense colour of plant extract without affecting activities. The system was tested with different concentration of cashew leaves extract (5, 10, 15, 20, 25 and 30%) in contact with (10, 15, 20 and 25 g) granular activated carbon (GAC) from 0 to 6 h. Ethanol and water extracts of cashew leaves were compared for the cosmeceutical properties, mainly the antioxidant and antimicrobial activities. This study therefore suggests that cashew leaf extract is suitable to be used with ethanol for cosmetic application.
Highlights
Cosmetics are products used to protect and improve the appearance of the skin or deodorate the human body
Different concentration of cashew leaves extract (5, 10, 15, 20, 25 and 30%) (Figure 1), in water and ethanol were treated by different amount of granular activated carbon (GAC)
Previous studies proved that the extract of cashew leaves exhibited strong antioxidant activities and showed strong activity in the free radical scavenging assay (Kadirvelu and Namasivayam, 2003)
Summary
Cosmetics are products used to protect and improve the appearance of the skin or deodorate the human body. With the growth of knowledge, consumers are moving towards the use of cosmetics from natural resources, more effective and with no chemical ingredients. They are looking for products without any side effects and at the same time more effective in maintaining the health of the skin. For this reason, some consumers use cosmeceutical products with combination of cosmetic and pharmaceutical ingredients to reduce or delay the process of skin aging, as well as maintenance of healthy skin by addition of photochemicals such as antioxidants.
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