On the products
fruit acid that cannot be used with fruit acid, it is active and has a great effect on skin care. However, there are also many products that need to be used with caution.

First, high-concentration alcohol products must not be used with fruit acid. Alcohol is strong in nature, highly volatile and irritating. When used with fruit acid, the skin seems to be in a "double heaven of ice and fire". The rapid evaporation of alcohol causes the skin to lose water, and the fruit acid accelerates the metabolism of keratin. The superposition of the two makes the skin prone to dehydration, the barrier is damaged, and redness, swelling, and tingling are frequent.

Second, strong alkali cleaning products should not be combined with fruit acid. Fruit acid is acidic and meets strong alkali, and the acid-base neutralization reaction is violent. This not only loses the activity of fruit acid, but also wipes out the power of skin care, and strong alkali ingredients remain in the skin, or destroys the acid-base balance of the skin, causing dry, rough skin, and even causing inflammation.

Furthermore, it is also necessary to be vigilant when combining products containing retinoic acid with fruit acid. Retinoic acid can promote keratinocyte renewal, and fruit acid also has this effect. In addition, high-concentration salicylic acid products should also be avoided in combination with fruit acid. Salicylic acid can also improve keratin problems, and synergize with fruit acid. Although it seems to be synergistic, it actually increases the risk. The stratum corneum of the skin is too thin, the defense function is weakened, the resistance to external stimuli is suddenly reduced, and the sensitive state is very easy to appear.

The way of skin care is like walking on a boat in water, and the formula matching needs to be accurately weighed. Only by knowing that fruit acid cannot be used can you protect your skin and get healthy and beautiful skin.