Usage of Zinc PCA with Azelaic Acid and Azelaic Acid Concentration

Usage of Zinc PCA with Azelaic Acid

Based on the information provided, Zinc PCA and Azelaic Acid cannot be mixed together in the same product formulation. However, if they are in separate product formulas, they can be applied sequentially without any issues.

Azelaic Acid Concentration for Acne Treatment

Regarding the use of Azelaic Acid in skincare products for acne treatment, the appropriate concentration depends on the product type and individual skin response.

• In Cosmetic/Cosmeceutical Products: Generally, Azelaic Acid in forms used in cosmetics, such as Azelaic Acid (Liquid Azelaic™), is recommended for use at a concentration of 5-10% (10% is recommended for brightening and reducing oiliness/acne).
• In Medicinal Products: Some medicinal products, such as Skinoren, may use Azelaic Acid at a higher concentration of up to 20%.

Using a higher concentration does not necessarily mean faster results. Higher concentrations can increase the likelihood of skin irritation, such as stinging, redness, or peeling. Choosing a concentration that is suitable for your skin and can be used consistently will yield better long-term results than using a high concentration that might cause irritation and require you to stop using the product.

Therefore, if you want to create an acne treatment product, you should consider using Azelaic Acid at the concentration recommended for cosmetics (5-10%) to minimize the chance of irritation and ensure safe and continuous use.