Manual pressure creates irregular folds that can weaken the aluminum and trap product. The wrench exerts uniform mechanical pressure to ensure 100% extraction of the formula.

Its standardized slot is compatible with all aluminum tubes in the PERS range, as well as with most standard pharmaceutical care tubes.

Yes, it's designed to stay attached to the tube. Its weight even helps to keep the tube stable when placed on your bathroom shelf.

We've redesigned the packaging for our Pro-Retinol Serum 0.3% PERS, removing the tube wrench originally supplied with the product.
This key is a particularly effective accessory for optimizing the use of the tube and guaranteeing complete use of the formula, without loss.

However, after nearly three years of the brand's existence, we observed a high repurchase rate for this serum. Many loyal customers found themselves with several keys at home, often unused.

With a view to continuous improvement and the reduction of superfluous items, we decided to offer this key separately, at an affordable price.

This decision is part of a pragmatic and responsible approach, aimed at limiting the proliferation of non-essential accessories, while giving consumers the choice to equip themselves if they wish, and helping to reduce our environmental impact.