How do you choose between la crème de Biarritz and Hydra-protect+ Face Moisturizing Cream?

It all depends on your concerns! Biarritz Cream offers a sensorial approach to moisturising, with 24-hour moisturising action and prevention of the first wrinkles.
As for Hydra-protect+ Face Moisturizing Cream, it's a multi-action skin care product that acts to hydrate the skin and provide overall protection against everyday aggressions¹( blue light, pollution, stress, fatigue...).

¹In vitro and in vivo tests on ingredients.