Biologique Recherche’s P50 1970 toner goes against everything modern “green” beauty obsessives stand for.
The main ingredient is phenol, an acid banned from cosmetics in the EU, and the burning sensation leaves skin red and blotchy — but it flies off Rescue Spa’s shelves.
“I’ve been using it for 25 years . . . So I’m certainly one of the people who [are] responsible for its popularity,” says Rescue Spa owner and esthetician Danuta Mieloch, who advises using the toner after cleansing and before moisturizing.
The solution contains a mixture of exfoliating acids, which buffs away dead skin cells. Other ingredients balance the skin’s pH level and lightly moisturize.
“If there’s congestion, it helps you to push everything out and clear it out, rather [than] suppressing it with Benzoyl peroxide and things like that,” says Mieloch. “It really encourages your own skin to build a healthy skin.”