Ceramide AG Best Humectant Anti-Ageing Ceramide AG at a glance A type of fatty acid naturally found in skin Helps comprise and maintain skin’s barrier Topical use softens and smooths dry, rough skin May be animal-derived or synthetic Very low amounts are considered effective Ceramide AG description Ceramide AG is categorized as a complex lipid that’s a natural part of skin’s protective barrier. It works with other ceramides, cholesterol, and fatty acids to keep skin hydrated, smooth, and healthy-looking. This emollient may be animal-derived or syntenic (Paula’s Choice Skincare uses the latter) with the synthetic form being bio-identical to the ceramide AG found in skin. For best results, look for a blend of ceramides in leave-on skin care products that also include cholesterol and fatty acids such as stearic or palmitic acids. Another option would be to see ceramides blended with non-fragrant plant oils, all of which are excellent sources of various types of fatty acids skin needs to ensure its barrier remains intact and able to do its job. Usage levels of ceramides, including ceramide AG in skin care are typically very low, ranging from 0.00005-0.2%. Clearly, it doesn’t take much of these powerhouse ingredients for visible results. Ceramides are considered safe as used in cosmetics.