Question: How effective are fruit acid peels? Question Description: I have heard that fruit acid peels are very effective in treating skin disorders and improving photoaging of the skin, and some say it is synonymous with thinner, more sensitive skin. Fruit acid is an acidic substance, so will it be harmful to the skin? How effective is it in treating acne marks? The name means that it is a variety of organic acids extracted from fruits, according to the different molecular structures, there are glycolic acid, lactic acid, malic acid, citric acid, amygdalic acid and so on. Fruit acid is a weak acid, in addition to the concentration, the PH value determines its effectiveness. In an acidic environment, the effect and preservation of fruit acids are favored, while in an alkaline environment, fruit acids are dissociated and lose their effect. For example, if the concentration of AHA is as high as 15%, but in a solution with a pH value greater than 5, most of the fruit acid molecules have been dissociated, and of course the fruit acid activity is lost. In fruit acid products, it is more important to stabilize the balance than the concentration of the fruit acid by reconciling the pH of the solution system. According to the research, the PH is in the acidic range of 2.5-3, the effect of fruit acids is the best, but the irritation is also increased. At present, the concentration of fruit acids in cosmetic counter products is below 5%, and the PH value is above 3. The effect can only focus on exfoliation and moisturizing effect, and there is no obvious effect on wrinkle whitening. The principle of fruit acid peeling Fruit acid can make keratinocyte adhesion weaken, so that the keratin layer accumulated on the skin falls off, and the skin is bright and moist. In addition to the above-mentioned improvement in skin texture, fruit acid preparations have the effect of degranulating mast cells in the superficial dermis. The medium released by mast cell degranulation has the effect of stimulating fibroblasts in the dermis. It increases the number of protofibers and elastin fibers, making the skin full and elastic again. Indications for fruit acid peeling 1. acne pimples 2. acne pigmentation, pigmentation, skin darkness, superficial scarring 3. photoaging: fine wrinkles, rough skin 4. enlarged pores 5. skin keratinization abnormalities Precautions for fruit acid peeling [skin type/complexion]: some skin types need special attention. For example, Asian skin is often very sensitive and can cause skin discomfort due to treatment and cannot tolerate higher concentrations of acid. In addition, patients with darker skin tones are at an increased risk of hyperpigmentation or hypopigmentation after deeper peels. For patients at risk for pigmentation abnormalities or with concerns about healing, it is usually recommended to start with low concentrations and short exposure times. [Allergy]: Especially if there is a history of allergy to the peel solution ingredients, the skin may react strongly to the treatment procedure. With autoimmune diseases, diabetes, etc.: Impaired normal skin physiology can easily lead to skin sensitivity, delayed healing time or even bring additional uncertainty. [Viral infections]: For patients with a previous history of herpes, the treatment process may lead to herpes flare-ups. Those with a history of herpes simplex should use appropriate oral antiviral medications for prevention. If there are warts in the treated area, there is a risk that the warts may spread. [History of photosensitivity]: The skin should be protected from sun and other UV radiation, heat radiation and artificial sunbathing after treatment. Any previous history of photosensitivity may be aggravated. In case of intolerance, sunscreen may be used. [Current treatment medications]: Patients on anticoagulants may heal more slowly, although superficial peels do not affect coagulation. Deeper peels that result in epidermolysis are more risky and may result in bleeding. Also, any immunosuppressant has the effect of delaying healing time. Skin sensitivity and reactivity can be exacerbated especially in patients who have used retinoic acid and epidermolysis bullosa prior to treatment. What should I do if the following complications and adverse reactions occur with fruit acid treatment? 1. Itching and burning of the skin may occur during the treatment. These are normal phenomena, but you need to always tell your therapist about these feelings so that they can judge the depth of action and the time to end the treatment according to your discomfort level. 2. After treatment, there may still be discomfort such as itching, stinging, burning, redness and tightness, and some may experience slight edema, superficial crusting and flaking, which are normal post-operative reactions. 3, acne patients in the initial 1-2 treatment, there will be acne symptoms aggravated phenomenon, this is due to the removal of abnormal accumulation of keratin, reduce the follicle mouth obstruction and acid penetration under the keratin caused by limited dermatitis, so that the original latent lesions released in advance, the timely use of anti-inflammatory drugs can be. 4, very few cause hyperpigmentation or color reduction, in this case must strengthen the sunscreen, generally will be self-healing over time.