High-purity algae extract from micro algae (Nannochloropsis oculata) combined with pullulan, a film-forming natural sugar (glucan) from the fungus A. Pullulans. Contains vitamin C & B12 as antioxidants; Yellow to amber, viscous liquid. Soluble in water & ethanol.Has been shown to tighten skin in the short as well as long term. Studies found that SkinTIght AP can protect skin cells from oxidative stress & strengthening skin’s connective tissue by stimulating collagen synthesis & renewing tissue cells. Pullulan can also retain moisture.Also a good water-binding agent, thickening agent, and skin antioxidant.Recommended use level 1 - 5%. Should be incorporated at the end of formulations at < 50oC (122oF) & pH 5-7. Precipitates are reversible by shaking or stirring. Store in refrigerator.COMES IN 2 dram BOTTLE - MAKES UP TO 25 OZ . BOTTLE - MAKES UP TO 25 OUNCESIf using at 1% makes 25 ounces of productComes in 2 dram glass amber bottle is glass dropper for easy distribution into your other products. bottle may vary in style