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"I love using this product with the retinol powder. On days I am not using retinol, I will use this serum on its own. It is so lightweight and applies easily."
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A Hyaluronic Acid Refill to be used in any Exponent Power Serum. Four weights of Hyaluronic Acid molecules activate our potent anti-aging Powders to transform into a potent, hyper-hydrating serum with proven clinical results.
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Suitable for
All skin types, including dry, mature, blemish-prone, combination, and sensitive skin.
Why we stand behind it
Normally, antioxidants degrade and oxidize when coming into contact with light, air, or water but these clinical-grade Power Serums are activated fresh for peak potency.
Powderized ingredients are precisely dosed with a patented, precision dispenser and seamlessly activated in your palm with a hyper-moisturizing Hyaluronic Acid. The result? A serum that delivers visible results in 1-2 weeks without irritation.
Multi-weight Hyaluronic maximizes moisture-binding capacity—working on multiple layers of skin for supreme absorption of concentrated actives.
Note: this is a Hyaluronic Acid Refill, intended to be used with any existing Exponent Power Serum.
Key ingredients
Hyaluronic Acid: this multi-weight formula penetrates multiple layers of skin to deeply hydrate, boost elasticity, plump and restore the skin from within, helping to smooth fine lines and wrinkles.
this product meets
The Credo Clean Standard™
Every product we offer meets our industry leading standards for safety and sustainability.
learn moreThis product is
Cruelty Free
Sustainable Packaging
Vegan
Gluten Free
Fragrance Free
Alcohol Free
Soy Free
Paraben Free
What's Included: Refill of the Quadruple Hyaluronic Acid Serum for the Exponent Beauty Power Serums.
How to Use: After cleansing, apply serum
1. Stamp Active Powder in palm for one precise dose (this keeps anti-aging ingredients at peak potency).
2. Pump one dose of Hyaluronic Acid; mix in palm (this activates powders into hydrating, silky serums).
3. Apply serum to face and neck
Use every evening.
We co-founded the nonprofit Pact to demystify how to recycle your beauty packaging empties and divert waste from landfills.
How to recycle your empties
1. Disassemble and clean all components
2. Pick the right disposal bin
3. Drop off your empties at your nearest Pact bin
1 Product Recycled = 10 Credo Rewards Points
create accountFounded by Liz Whitman, a beauty industry veteran of over 20 years, Exponent Beauty innovates on delivery systems to ensure high performing clinical skincare ingredients are at their highest concentration and efficacy. Born from the ageless esthetician practice of mixing fragile antioxidants fresh to preserve peak potency, Exponent’s anti-aging Activated Serum line fully protects antioxidants for clinical serums with visible results in 1-2 weeks. All of their products are dermatologist-recommended and clinically tested with measured instrumentation on sensitive skin for visible results without irritation. Exponent’s patented packaging is refillable to eliminate plastic waste earning the brand B-Corp certification and an award for sustainable packaging design. Exponent prides itself on giving consumers powerful, science-backed skincare solutions coupled with the magic of uniquely designed packaging experiences.
SHOP ALL Exponent BeautyOverall rating: 4.7714286 / 5 from 35 reviews.
Review topics: [packaging, skin, results, acid, improvement, hydration, serum, retinol, system, exponent].
"I love using this product with the retinol powder. On days I am not using retinol, I will use this serum on its own. It is so lightweight and applies easily."
— Erin D. (5/5)
"Great basic hyaluronic acid to mix I with the powders!"
— Linda B. (5/5)
"I like this product so much! There's something about the mixing two components together that makes me feel like I am creating magic! I use it on my face and then I put the rest on the back of my hands and I have seen a change in the darker spots in b"
— Ari-Asha C. (5/5)
"This product is fantastic - it's easy to dispense and because its active when you put it on I have seen huge improvements with my skin"
— Emily D. (5/5)
"Order never came"
— Shrin P. (1/5)
"Love how easy this system is to refill and how this serum can be mixed and matched with different powders from Exponent."
— Lauren (5/5)
"The system is amazing, my skin looks noticeably better and I like that it's refillable."
— Allison M. (5/5)
"I love the way it feels (when mixed with the Vitamin C powder) on my face, and while I'm not prone to raving about changes in my skin based on a product, I really do think I see improvement!"
— Ari-Asha C. (5/5)
"Easily dispensed and mixed with vitamin C (AM) and retinol (PM) powders allowing smooth and generous application each and every time to my face, neck and decollete."
— Mary C. (5/5)
"Great packaging & I love the refill option. Very hydrating."
— Lily D. (5/5)
We offer clean beauty vetted to the highest standard.
We want to know where ingredients come from and how they were made.
Clean beauty should include the just treatment of humans and animals.
We co-founded Pact to tackle beauty’s packaging waste problem.
A Hyaluronic Acid Refill to be used in any Exponent Power Serum. Four weights of Hyaluronic Acid molecules activate our potent anti-aging Powders to transform into a potent, hyper-hydrating serum with proven clinical results.