Ingredients fall on this category do not really target on melanin, they are not even recognized as whitening ingredients as they cannot prevent melanin formation, nor inhibit tyrosinase like what we had discussed previously. However, they can improve cell renewal, remove dead skin cell to soften skin, thus increase skin metabolism rate as well as improve absorption and penetration of whitening ingredients. Base on this, they can be classified as whitening enhancer.
There is melanin beneath within stratum corneum (outmost layer of epidermis), with exfoliator work on skin, will remove melanin as well. However, if high concentration of chemical exfoliator is applied, skin will inflame and red caused pigmentation.
Fruit acids/AHA (lactic acid, citric acid, glycolic acid, tartaric acid, malic acid), vitamin A derivatives (retinyl palmitate, retinol, tretinoin and etc), amino acid, phytic acid, BHA (salicylic acid), PHA, enzymes (papain, bromelain and etc) are examples of metabolism improver.
Whitening skin cares will include these ingredients as enhancer to improve penetration of skin, thus contribute better results and achieve whitening effect. Besides whitening skin cares, we can also include some exfoliating items in daily skincare routine. Lemon essential oil, rosehip oil could be used as oil-based serum together with moisturizer during night time to whiten skin.
Besides, DIY-kit peeling program can be done at home to enjoy the similar effect contributed by dermatology skin clinics or beauty salons. These peeling program contains glycolic acid as main peeling ingredient, as low as 20% concentration.
Lancome Resurface Peel
Chanel Micro Solutions Refining Peel 21-day Program