Hydration Serum — 4 Weight Hyaluronic Acid
For dry, dehydrated skin under any routine — a lightweight serum with four weights of hyaluronic acid that hold water at different depths, plumping the surface while smaller molecules reach the living layers just beneath, for hydration that lasts.
Four weights of hyaluronic acid, one quiet result: my skin stays comfortable all day instead of tight by noon.
Because you read the ingredients first.
Every active is here because the research supports it. Concentrations and study links below.
Graded by how solid the evidence is: Strongest Strong Mixed
Sodium Hyaluronate (Multi-weight)
Four molecular weightsGlycerin
Compare to
Equivalent products from other companies.
- $110.00
- $49.00
- $70.00
Is this for you?
This is ideal if you:
- Have any skin type and want a simple, reliable hydrator
- Want hydration without fragrance or strong actives
- Have a compromised or post-treatment barrier that needs gentle hydration
- Layer other actives and want a neutral hydrating base underneath
Why this formula works
High molecular weight surface
1,000+ kDa HA forms a hydrating film at the stratum corneum — immediate, visible plumping.
Low and ultra-low penetration
Below 50 kDa, HA reaches the living epidermis — the deepest layer this serum's hydration is designed to reach.
Active-free formulation
No retinol, no acids, no sensitizers. Designed for compatibility with everything else in your routine.
How to use
AM and PM
Apply to slightly damp skin and follow with moisturizer to seal. HA binds to water — there must be water present for it to bind.
Why choose Sorrel & Co?
| Feature | Sorrel & Co | Most Competitors |
|---|---|---|
| HA molecular weights | Four (high → ultra-low) | 1–2 typical |
| Multi-depth hydration | Surface + epidermis + deeper | Surface only typical |
| Added actives or fragrance | None — pure hydration | Often added |
| Gentle for sensitive or recovering skin | Yes | Often too active |
What to expect
DAY 1
Immediate plumping
Surface HA produces a visibly fuller, smoother appearance from the first application.
WEEKS 2–4
Deeper hydration foundation
Low-MW fragments reach the deeper layers, building a hydration foundation that compounds over the following weeks.
WEEKS 6+
Compounded resilience
Skin holds moisture more independently and recovers faster from environmental stress.
Pairs well with
Daily Cleanser
Licorice & Mushroom Extract
Cleanse, then press hyaluronic acid into still-damp skin.
$34
Dew Cream
Niacinamide & Allantoin
Seal it with a moisturizer so the hyaluronic acid holds water in.
$59
Repair Serum
Snail Mucin & Centella
Adds panthenol and centella for barrier support beyond hydration.
$44
The 30-day Sorrel & Co promise
Use it daily. If your skin isn't visibly brighter and smoother, return the empty bottle for a full refund — no return shipping, no questions.
Frequently asked
