These potent serums are among the purest and most concentrated serums in the industry. After the
Preparation Stage has been successfully completed, Biologique Recherche serum solutions work to
replenish the amino acids composing the skin’s natural moisturizing factor, an important part of the acid
mantel. This provides optimal surface conditions to encourage the regeneration needed for radiant skin.
Serums can be used alone or mixed one with another.