Home 70% glycolic acid rejuvenation operation guide
Pre-preparation
1. ** Material preparation **: 70% glycolic acid solution, neutralizing solution (such as sodium bicarbonate solution), sterile cotton swab, clean brush (soft material, suitable for application solution), goggles or items that can cover the eyes, Vaseline, pH test strip.
2. ** Skin test **: Apply a small amount of glycolic acid solution behind the ear or on a small area of inconspicuous skin on the face and observe for 15-20 minutes to see if there is any allergic reaction such as redness, swelling, tingling, itching. If there is any discomfort, do not perform full face rejuvenation.

Operation steps
1. ** Cleansing the face **: Wash the face with gentle cleansing products to remove dirt and oil, then gently pat dry with a clean towel to ensure dry face.
2. ** Protect the periphery **: Carefully apply Vaseline to sensitive and irritated parts of the skin such as hairline, eyebrows, nose wings, corners of the mouth, chin, etc., to prevent discomfort caused by glycolic acid contact. Wear goggles at the same time to avoid the solution splashing into the eyes.
3. ** Apply glycolic acid **: Dip a brush in 70% glycolic acid solution, start from one side of the face, and apply evenly. The action is light and orderly to ensure comprehensive coverage. Be careful to avoid the eyes, lips and damaged skin.
4. ** Stay Timing **: Determine the stay time according to your own skin tolerance. Generally, it is appropriate to try 1-2 minutes for the first time. If the skin adapts well in the follow-up, it can be appropriately extended, but it should not exceed 5 minutes. Use pH test paper to monitor the change of pH on the surface of the skin to assist in judgment.
5. ** Neutralization Treatment **: Reach the set time, quickly apply the neutralization solution evenly to the face, gently wipe, neutralize the glycolic acid acidity, and terminate its effect on the skin. Repeat the operation several times to ensure full neutralization.

Follow-up care
1. ** Cleansing the face **: Rinse the face with plenty of water, make sure the neutralizing liquid and residual glycolic acid are washed off, and then gently pat dry with a clean towel.
2. ** Skin care **: Apply mild moisturizing products to replenish moisture to the skin and relieve the dry and tight feeling that may occur after rejuvenation. Avoid the use of irritating skin care products and cosmetics in the short term. Strictly do a good job of sun protection when going out. You can wear physical sun protection such as hats and umbrellas.

The operation process needs to be cautious. If there is serious discomfort, you should seek medical attention immediately.