Alpha Hydroxy Acid

What is alpha hydroxy acid?

Alpha Hydroxy Acid powder (AHA) is a variety of organic acids extracted from fruits, and is an active ingredient present in a variety of natural fruits or yogurt. Contains grape acid, malic acid, citrus acid and lactic acid, etc. Most of them are extracted from fruits, so it is called Alpha Hydroxy Acid.

It has strong permeability and is easily absorbed by the skin through the stratum corneum, thereby promoting the metabolism of epidermal cells and the synthesis of dermal collagen, and finally achieves the effect of moisturizing the skin and eliminating wrinkles.

What are the effects and benefits on the skin?

1. Alpha Hydroxy Acid powder can promote the activation and renewal of epidermal cells, reduce the coagulation force between keratinocytes, make aging cells fall off smoothly, avoid abnormal keratin accumulation, increase the skin's moisturizing ability, and prevent hair follicle openings from being damaged. Blocking, it is conducive to the smooth discharge of sebum, and also makes the acne that has been formed easy to fall off after softening. It is also helpful for removing acne and fading acne scars.

2. Alpha-hydroxy acid moisturizes the skin, can make the stratum corneum fall off, and dilate the capillaries in the superficial dermis. Thus making the skin appear rosy and bright.

3. Alpha-hydroxy acid is a moisturizing agent for the skin. Alpha-hydroxy acid can make the cells of the skin layer contain sufficient moisture, making the skin look shiny and soft.

4. Topical alpha-hydroxy acid preparations can thicken the epidermis, thin the connective tissue of the papillary dermis, fade the color, moisturize the skin, reduce wrinkles and aging.

5. Topical alpha-hydroxy acid preparations have the effect of degranulating mast cells in the superficial dermis. Alpha-hydroxy acids can dilate capillaries and improve skin blood circulation, thereby improving skin texture.

2. It can promote the skin's youthful state from the inside out, eliminate skin blemishes, and effectively treat acne. Alpha-hydroxy acid can avoid abnormal keratin accumulation, promote the activation and renewal of epidermal cells, and reduce the production of melanin.

3. It can also promote collagen production, which is also helpful for the renewal of elastic fibers and the formation of substrate materials.

4. Low concentration of α-hydroxy acid can reduce the aggregation force of keratinocytes and reduce the thickness of the stratum corneum; Matrix (acidic mucopolysaccharide) increases, removes facial wrinkles

Skin action

1. The small molecules of α-hydroxy acid have super penetrating power and can quickly penetrate the skin.

2. Effect on the epidermis: reduce the desmosome connection between keratinocytes, increase the speed of epithelial cell metabolism, accelerate the shedding of aging keratinocytes, promote skin renewal, and make the epithelial cells more tidy, and the stratum corneum becomes smooth. And meticulous. At the same time, α-hydroxy acid can also make the keratinized plugs around the pores easy to fall off, and unblock the hair follicle tubes, effectively preventing the pores from being blocked.

3. Effect on the dermis: It can stimulate the proliferation and rearrangement of hyaluronic acid, mucopolysaccharide, collagen and elastic fibers, increase the water content of the skin, make the skin firm and elastic, and reduce fine lines and wrinkles.

4. These functions of alpha-hydroxy acid on the skin are mainly used to improve acne, freckle and wrinkle

PH value

Alpha-hydroxy acid is a weak acid, and in addition to concentration, pH determines its efficacy. The acid environment is conducive to the action and preservation of α-hydroxy acid, and in the alkaline environment, the α-hydroxy acid will be dissociated and lose its function. For example, AHA with a concentration of up to 15%, but in a solution with a pH value greater than 5, most of the α-hydroxy acid molecules have been dissociated, and the activity of α-hydroxy acid will be lost.

In α-hydroxy acid products, the stable balance is more important than the concentration of α-hydroxy acid in the buffer solution system for reconciling the pH. According to research, α-hydroxy acid has the best effect when the pH is in the acidic range of 2.5-3, but the irritation is also increased. The skin care products in the cosmetics counter have the concentration of fruit acid below 5% and the pH value above 3. The effect can only focus on exfoliating and moisturizing, and has no obvious effect on wrinkle removal and whitening.

The concept of free acid: The so-called free acid is the acid that is not dissociated in the solution. In the case of α-hydroxy acid, it is the α-hydroxy acid that can really act. All α-hydroxy acids are weak acids, some will dissociate in aqueous solution, and the real effect is the undissociated free acid.

Alpha-hydroxy acid concentration

Very low concentration of alpha-hydroxy acids, only moisturizing. When the concentration is slightly increased, it has the effect of exfoliating, which can destroy the connection between the stratum corneum cells and promote the metabolism of the skin. At higher concentrations, its destructive power is relatively large, and the effect reaches the dermal tissue, which can be used for chemical peeling. In general, the higher the concentration, the more obvious the effect, but the chance of side effects is also relatively increased.

Effects of different concentrations of α-hydroxy acids

1. Low concentration of α-hydroxy acid (less than 10%): α-hydroxy acid can reduce the coagulation force between epidermal keratinocytes, remove aging keratin, improve roughness, dullness, and condition the skin.

2. Medium concentration α-hydroxy acid (10%-30%): The effect can reach the dermis, and has a good effect on acne, lightening dark spots and smoothing wrinkles.

3. High concentration of Alpha Hydroxy Acid powder (greater than 30%): It has a very strong penetrating power, which can peel off the aged keratin at one time and accelerate the effect of spot removal and wrinkle removal. However, high concentrations of alpha-hydroxy acids are peeling properties, and it is best to seek professional medical treatment.

Company introduction and certificates obtained

YTBIO mainly supplies Alpha Hydroxy Acid powder and other products. The company was established in 2014 and has many years of experience in R&D and production. We are committed to the R&D, production and sales of raw materials for the health industry in the 21st century. The certificates obtained so far include ISO9001, ISO22000, HALAL, KOSHER, HACCP, FDA etc. We always maintain the highest demands on product quality.