The analysis of hydrochloric acid and glycolic acid
Hydrochloric acid and glycolic acid are all commonly used ingredients in chemical products and skin treatment fields. Each has its own characteristics, and the efficacy is good, but which one is better, depending on many factors.

The chemical property of hydrochloric acid
is based on β-hydrochloric acid, and its molecule contains benzene, carboxyl group and hydrochloric group. This makes hydrochloric acid fat-soluble and can penetrate deep into the skin and oil. Glycolic acid, the representative of α-hydrochloric acid, is water-soluble.

The efficacy is poor
1. ** Angle removal **: Glycolic acid acts on the surface of the skin, can quickly dissolve the capsules, accelerate the renewal of the capsules, and make the skin smooth and tender. For example, when using glycolic acid-containing capsules for 7 days, it can often brighten the color. Water acid is fat-soluble, penetrates deep into the pores, clears the pores and piles of horns, and can effectively dredge the pores and reduce the generation of acne.
2. ** Oil control effect **: Water acid can penetrate into the sebaceous glands with strong oil secretion and secrete sebum. Therefore, those with oily skin can use products containing this ingredient, which can make the skin feel less oily. The oil control effect of glycolic acid is relatively weak, and it mainly focuses on the renewal of the epidermal corners.
3. ** Anti-acne effect **: In addition to removing horns and oil control, hydrochloric acid has anti-inflammatory properties and can relieve acne inflammation. Bed studies have shown that hydrochloric acid can be used for moderate acne, which is effective. Glycolic acid can also improve the keratosis of the hair follicle mouth to a certain extent, but the anti-acne effect is the whole hydrochloric acid.
4. ** Anti-aging effect **: Glycolic acid can stimulate the synthesis of proprotein, improve skin quality, and improve skin quality. The use of glycolic acid-containing products in the final period can increase the skin quality. The effect of hydrochloric acid in anti-aging is not prominent, and its main effect is on the treatment of oily acne muscles.

Use
1. ** Hydrochloric acid **: For oily, mixed and acne skin. Due to its fat solubility, anti-acne and oil control properties, it can effectively solve the problem of this skin. However, those with sensitive skin should use it with caution, because it may irritate the skin, causing damage to the skin, skin, etc.
2. ** Glycolic acid **: It is used for a lot of skin, especially dull, rough and rough skin. No, high-grade glycolic acid is also highly irritating to sensitive skin, and the skin needs to be treated before use.

Of course, hydrochloric acid and glycolic acid have their own advantages. If it is oily and acne-prone, if you want to improve acne, control oil and dredge pores, water acid is better; if it is rough and dull, pursue brightening, anti-aging, glycolic acid or first. But whichever one is used, it is based on its own quality, starting with low-grade products, and gradually establishing skin tolerance.