Lactobacillus ferment & Inulin: Probiotic & prebiotics that supports skin microbiome balance for a visibly healthier, more resilient complexion. 

Magnesium Chloride & Hyaluronic Acid: Boost hydration, visibly plump the skin, and improve its appearance.

Saccharomyces/Grape Ferment: A patented ingredient that supports vitamin D levels to boost the skin's natural defenses, support healthy-looking complexion, and enhance skin resiliency.

Pro Tip: When pairing with Skin Diligent Vitamin C Serum-in-oil (sold separately) in the morning, you can skip the moisturizer! The two serums together replace a day cream.

The Cellular Hydration Serum is science and safety working together at their best. This serum goes beyond surface hydration to address the skin's four fundamental daytime needs: hydration, barrier protection, antioxidant defense, and microbiome balance.

A patented Saccharomyces/Grape Ferment helps support vitamin D levels to visibly support skin's natural defenses. Probiotics and prebiotics balance the microbiome, while hyaluronic acid and magnesium visibly plump and smooth. This serum restores hydration and strengthens skin resilience, keeping your complexion smooth, plump, and naturally luminous.

In independent testing, 100% of testers showed a measurable increase in skin hydration after just 2 hours. The formula is a lightweight, fast-absorbing gel - non-sticky, suitable for facial massage, and gentle enough for even the most sensitive and reactive skins. Skin is deeply replenished, visibly luminous, and completely safe.