index
From 13 to 30 August, deliveries may experience slight delays due to reduced courier operations.
SUMMER SALE · 15% OFF EVERYTHING IN THE SHOP · Valid for a few days

AUCTION MAGAZINE

INGREDIENT GLOSSARY

The scientific research laboratory responds.
Discover all our insights, tips, and news from the world of LeLang.

Alpha hydroxy acids (AHAs): what are they and which one should you choose?
Alpha hydroxy acids are not all the same: molecular weight determines penetration and tolerability. Glycolic, lactic, and mandelic acids compared, including the forms they come in and which one to choose.
+   Read more
Mandelic acid: what it is used for, how to use it, and how often
Among the alpha hydroxy acids, it has the largest molecule: it penetrates slowly and is the best tolerated. What percentage should you use it at, how often, and why is it the only AHA that can also be used in summer?
+   Read more