Hyaluronic Acid is produced through fermentation. Exponent's Hyaluronic Acid Hydrator combines four types of hyaluronic acid into a single formula that penetrates each layer of skin for optimal absorption, proven to maximize plumping, hydration, repair, and restoration.

Standard hyaluronic acid products use a single molecular weight, which typically sits on the skin's surface rather than penetrating deeper layers. Exponent's quadruple-weight formula combines four molecular weights that absorb at different skin depths, delivering more comprehensive and longer-lasting hydration than single-weight alternatives.

Single molecular weight HA can cause irritation for some skin types because large molecules sitting on the surface can disrupt the skin barrier rather than support it. Multi-weight formulas like Exponent's are significantly better tolerated because lighter molecular weights absorb quickly rather than sitting on top of the skin.

Yes. Hyaluronic Acid is non-comedogenic and oil-free, making it appropriate for all skin types including oily and acne-prone skin. Proper hydration also helps regulate sebum production, meaning well-hydrated skin is less likely to overproduce oil to compensate for dryness.

The Hyaluronic Acid Hydrator is the activating base for all Exponent Power Serums and Pro System Add-Ons. Rather than mixing your active powder with plain water, you activate it in a clinically formulated hydration vehicle that delivers both the active ingredient and a full dose of quadruple-weight hyaluronic acid simultaneously.

Yes. The Hydrator works as a standalone hydrating serum for anyone who wants the benefits of quadruple-weight hyaluronic acid without adding an active ingredient. Apply one pump to clean skin before moisturizer, morning and night.