Azeco Cosmeceuticals

Applications

Applications

53. Question: Can Azelaic acid be used as a preservative or co-preservative in cosmetic products? Answer: Azelaic acid, even if it has antimicrobial activity is not a preservative and cannot be used as a preservative. Preservatives must be soluble in the water phase and Azelaic acid is very low soluble in water. 54. Question: How long is it recommended to leave an exfoliant on the skin for it to penetrate? Answer: Exfoliant works on the surface of the skin, not high penetration is required. In general 15 minutes are sufficient, otherwise, for a concentration higher than 10% of Azelaic acid, slight skin irritation can occur. 55. Question: Azelaic acid can be used during pregnancy. Can it also be used during breast feeding/lactancy period? Answer: In general yes, because Azelaic acid is a fatty acid occuring in nature and already present in the diet of animals and humans. But there are not sufficient studies to give more details on this. 56. Question: If Azelaic acid can be used for hair (re)growth products, what consequence does this have for growing facial hair (women) when used in skin products for the face? Answer: In hair products to have enough results for the hair regrowth, a combination with Vitamin B6 and Zinc has to be used. This combination is not present in the product for skin care. In addition, the growth of facial hair is following a different mechanism than the growth of hair.

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