FORMULATION OF SOLAR CREAM EXTRACT ETHANOL GANGGANG GREEN (Ulva lactuca L.) AND IN VITRO TEST OF SPF VALUE (SUN PROTECTING FACTOR)

Abstract

<p>Excessive ultraviolet radiation or UV rays will make the epidermal tissue in the skin unable to resist the harmful effects. Sunscreen is a cosmetic ingredient that functions as a physical or chemical function as a barrier to the penetration of UV rays into the skin. Plants that can function as sunscreens because they have phenolic compounds, one of which is green algae (<em>Ulva lactuca</em> L).</p><p>This type of research is an experimental study using UV-Vis spectrophotometry to determine the ability of sun cream to inhibit UV radiation to the skin. The purpose of this study was to formulate sunscreen cream from ethanol extract of green algae (<em>Ulva lactuca</em> L.) and measure the best SPF (<em>Sun Protecting Factor</em>) value of various concentrations of green algae (Ulva lactuca L.) ethanol extract sunscreen cream.</p><p>The results of the study the SPF value of formula 1 (cream base) was 1.5077, which means formula 1 has no activity as sunscreen, formula 2 (3% green algae extract) with formula 2 (3% extract extract) with an SPF value of 7,311 which is classified as in the extra protection category, formula 3 (4% extract concentration) has an SPF value of 13,427 which is included in the maximum protection category and formula 4 with an SPF value of 19,282 which belongs to the ultra protection category. The cream formulation with the highest SPF value was formula 4. The higher the extract concentration, the higher the SPF value.</p>