On the Compatibility of Urea and Glycolic Acid
The compatibility of human substances is related to the profit and loss of efficacy, which cannot be ignored. Whether urea and glycolic acid can be used together has attracted everyone's attention.

Urea has the function of moisturizing, which can build a hydrated environment on the surface of the skin, making the skin moist and soft. The principle is that urea can be combined with water molecules to retain moisture in the skin to achieve moisturizing effect. And urea can also soften the exfoliation, help the old exfoliation, and make the skin renew and metabolize orderly.

Glycolic acid, which belongs to fruit acid and the like, is long for gentle exfoliation. Its molecules are tiny, which can penetrate deep into the shallow layers of the skin, loosen the adhesion between keratinocytes, and naturally peel off the old keratin, thereby promoting the metabolism of the skin and rejuvenating. Long-term use can make the skin delicate and smooth, with uniform color.

As to whether the two can be used together, it needs to be explored in detail. From the perspective of chemical properties, urea is relatively stable, while glycolic acid is acidic, but the two meet, and there is no worry of severe chemical reaction. However, in practical applications, there are still a few points to pay attention to. First, glycolic acid has a certain irritation, and it is used with urea, or it may increase the irritation of the skin. If the skin is already sensitive, it may need to be tried on a small area of skin first, and then its reaction will be determined. Second, the ratio of the two needs to be appropriate, improper ratio, or damage the health of the skin, resulting in a discount in efficacy.

To sum up, urea and glycolic acid can be used together in theory, but in practical application, users should make careful choices according to their own skin conditions, prepare reasonably, and pay close attention to skin reactions to ensure skin health and achieve the best skin care effect.