BHA, or beta hydroxy acid, is a form of salicylic acid and is used in some topical exfoliants to reverse signs of aging.
或者beta hydroxy acid，是水杨酸的一种，被用在一些局部去角质产品中来扭转老化迹象。
2
The influence of magnesium hydroxide, zinc oxide and stearic acid on vulcanization behavior, mechanical properties and aging properties of ENR was investigated.
Anything in the stomach that affects the normal acidity and digestive processes, ranging from infections to acid reflux medicine to aging, may also interfere with B12 absorption, studies suggest.