Ceramides can also help to retain the skin moisture and hydration while keeping it soft and supple. All skin types benefit from the use of ceramides or ceramides moisturizer. However, many people feel that they are heavy for oily, acne prone skin due to their intense moisturizing properties.
Tremella polysaccharide has excellent moisture retention ability, it can absorb a large amount of water, and has the same high moisture retention no matter in low humidity or high humidity conditions. Tremella polysaccharide is used in skin care cosmetics. It has the function of repairing the epidermis, increasing the moisture content of the epidermis, increasing the moisture content of the stratum corneum, and giving the skin a soft feeling; it improves the skin conductivity integral value, improves the skin's water retention capacity, and reduces water release The constant indicates that the product can improve the barrier function of the skin and prevent the evaporation of water from the skin.
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1. Whitening and depigmenting
Tyrosine is the raw material for the formation of melanin, and tyrosinase is the main rate-limiting enzyme for the conversion of tyrosine to melanin. Its activity determines the amount of melanin formed. That is, the higher the activity of tyrosinase in the body and the higher the content, the easier it is to form melanin.
Arbutin can competitively and reversibly inhibit tyrosinase, thereby inhibiting the production of melanin, achieving the effects of whitening, brightening and removing spots!
2. Sun protection
α-Arbutin also has the effect of absorbing ultraviolet rays. Some researchers conducted a special test on sunscreen products added with α-arbutin and found that α-arbutin exhibits UV absorption capacity.
In addition, many scientific research experiments have verified that α-arbutin also shows certain curative effects in anti-inflammatory, antibacterial, and anti-oxidant aspects.
If you use skin care products with α-arbutin added, if the effect is not obvious, it must be a problem of insufficient concentration. The amount of α-arbutin should be 3%. If the amount is less than this amount, the inhibitory effect on the catalytic activity of tyrosinase in the skin will be weak, and the whitening effect will be insignificant.