GLOSSARY: RETINOL AND ACID

Retinol
Years after retinoids (in the form of Retin-A] hit the market, the mad scientists at many beauty companies started tinkering with a version for ‘over-the-counter’ usage. The result was retinol, a close relation to tretinoin that must first be converted to retinaldehyde and then to all-trans retinoic acid in the skin. Like its distant relatives, retinol is said to simulate collagen, unclog pores, promote a rosy glow and help with acne and rosacea. Even more so than with tretinoin, retinol
can sometimes be highly irritating to the skin.
Acid
The word “acid- might alarm some people, but be assured that these naturally occurring acids are unbeatable at accelerating the cell renewal process. Meet the family:
Alpha Hydroxy Acid (AHA) – glycolic (sugarcane); malic (apples); tartaric (grapes); lactic (sour milk); citric (citrus fruits). Ideal tor removing surface dead skin cells.
Beta Hydroxy Acid (BHA) – salicylic acid, the lone BHA. is found naturally in willow bark, sweet birch bark and wintergreen leaves. It is a fat-soluble acid, allowing it to penetrate into the pores. Poly Hydroxy Acid (PHA) – a newer, less irritating acid, that is easily tolerated by most complexions.
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GLOSSARY: RETINOL AND ACIDRetinolYears after retinoids (in the form of Retin-A] hit the market, the mad scientists at many beauty companies started tinkering with a version for ‘over-the-counter’ usage. The result was retinol, a close relation to tretinoin that must first be converted to retinaldehyde and then to all-trans retinoic acid in the skin. Like its distant relatives, retinol is said to simulate collagen, unclog pores, promote a rosy glow and help with acne and rosacea. Even more so than with tretinoin, retinolcan sometimes be highly irritating to the skin.AcidThe word “acid- might alarm some people, but be assured that these naturally occurring acids are unbeatable at accelerating the cell renewal process. Meet the family:Alpha Hydroxy Acid (AHA) – glycolic (sugarcane); malic (apples); tartaric (grapes); lactic (sour milk); citric (citrus fruits). Ideal tor removing surface dead skin cells.Beta Hydroxy Acid (BHA) – salicylic acid, the lone BHA. is found naturally in willow bark, sweet birch bark and wintergreen leaves. It is a fat-soluble acid, allowing it to penetrate into the pores. Poly Hydroxy Acid (PHA) – a newer, less irritating acid, that is easily tolerated by most complexions.*41\82\8*