Can Allantoin 0.5% be used for a long time?

Allantoin0.5% (Allantoin 0.5%) is generally considered a relatively mild ingredient that can be used long-term in facial care under appropriate circumstances. However, individual skin reactions to ingredients vary from person to person, so before long-term use, it is recommended to conduct moderate testing and observation to ensure that it is suitable for your skin type and that there are no adverse reactions. Allantoin is generally relatively safe for most people and is widely used in skin care and cosmetics. Long-term use of products with the appropriate allantoin content may help maintain healthy skin, slow down the skin aging process, and improve skin moisture levels.