What is retinoid and how does it help your skin?

Retinoids are a group of vitamin A acids and all derivatives of vitamin A. There are many types. For topical vitamin A, it is mainly divided into 2 groups:

1. Drug group: Tretinoin.

Which is Retinoic acid as the main active ingredient, has the most research. It can help with acne, freckles, exfoliate skin cells, dark spots, adjust skin structure, reduce water loss from skin cells, and there is information that it can help slow down skin deterioration due to UV aging. In addition, long-term application can also stimulate collagen production on the skin. But this is a drug that must be prescribed by a doctor and has more side effects than other vitamin A derivatives, namely, easy skin irritation, dry skin, peeling, and redness if used incorrectly.

2. Other groups of vitamin A derivatives 

That are often used in skincare products, such as Retinaldehyde, Retinol, Retinyl ester. Which will be lighter in order of action as follows:

Retinyl ester → Retinol → Retinaldehyde → Retinoic acid

You can see that Retinaldehyde is converted to Retinoic acid in only 1 step. Therefore, it still has the good results that Retinoic acid can do, and the side effects are reduced. Therefore, it is suitable for people who want to use retinoic acid but cannot tolerate สมัคร UFABET วันนี้ รับเครดิตฟรีสำหรับสมาชิกใหม่ the side effects. They can move back to using Retinaldehyde. Or, if they want to have even fewer side effects, they can move back to using Retinol or Retinyl ester, but the efficiency or ability will be reduced.

With research finding that

• Tretinoin 0.05%, if applied for 3 months or more, can stimulate collagen production in the skin layer by 70-80%.
• Retinaldehyde percentage that is effective in anti-aging is 0.05-0.5%, helps to make the skin more elastic, fine wrinkles are better.
• Retinol 0.4-1% after 4 weeks of application helps increase collagen in the skin, but is easily broken down when exposed to light and air. The advantage is that it is gentle and less irritating to the skin.

The choice of vitamin A and its derivatives should be based on skin condition and the ability to tolerate irritation. However, the principle is the same: if you are starting to use it for the first time, choose a low concentration first, apply it only 1-2 times a week. If you can tolerate it and it does not irritate, gradually increase the concentration or change to a stronger derivative.