Can I use expired mandelic acid essence?

Everyone should be familiar with mandelic acid. Mandelic acid is a very good tool for removing closed comedones. Mandelic acid can be used to care for the skin and has many effects on the skin. Many people like to use mandelic acid very much. So can mandelic acid essence be used after it expires? Come and see with me!

Can I use expired mandelic acid essence?

Mandelic acid essence cannot be used after it expires. All skin care products and cosmetics should not be used after their expiration date, as the ingredients in them will deteriorate and cause damage to the skin. Mandelic acid has the function of skin rejuvenating. It can remove acne marks on the old stratum corneum and lighten the melanin that has been accumulated in the skin for a long time.

Selection of concentration of mandelic acid

Mandelic acid 6% has the lowest concentration and is the mildest. It can be used every day. It is suitable for sensitive skin, skin with acne and closed comedones that are not very serious, or it can be used in combination with other concentrations for consolidation.

There is not much difference between 10% and 18%. It is suitable for people with normal skin stratum corneum and no allergies. 10% can be used every night, and 18% is recommended to be used once every 2 days, also at night. 20% has the strongest effect.

How to use mandelic acid

6% mandelic acid is suitable for daily use ~ once in the morning and once in the evening. But remember to moisturize and protect against the sun after use. The general recommendation for 18% is to use it once every 2 days and not every day. 18% is the golden concentration. Generally speaking, mandelic acid at this concentration has the best effect, but this concentration is not suitable for sensitive skin.