ST.GABRIEL’S® PHARMACEUTICALS

The Serum C+E

10% Stable Vitamin C.
Ceramide 3 Inside.
Your Barrier Comes First.

Clinical-grade serum with Sodium Ascorbyl Phosphate that doesn’t oxidize, Ceramide 3 at a concentration that actually rebuilds your skin barrier, and six more actives — each at a dose that earns its place on the label.

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Your Vitamin C Shouldn't Expire
Before You Finish the Bottle

90% of Vitamin C serums use L-Ascorbic Acid — a form so unstable it degrades within weeks.

That orange serum in your bathroom? That’s oxidation. You’re paying for a dead ingredient.

L-Ascorbic Acid

SAP — What We Use

What's Inside The Serum C+E

Eight actives. Zero fillers. Every concentration disclosed.

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Three Steps. Every Morning. Every Night.

Cleanse

Start with clean, dry skin. Pat dry gently — don’t rub.

Apply

2–3 drops. Gently press into face and neck. Don’t rub.

Protect

Follow with moisturizer. SPF every morning — always.

Your Barrier Needs Structure,
Not Just Moisture

Most moisturizers sit on top of your skin. Ceramide 3 integrates into the lipid matrix — the actual structure that holds your barrier together.

When that structure is intact:

Best in Market

The Numbers Behind The Serum C+E

Every number on this label is there for a reason. No fillers. No fragrance. No compromise.

Frequently Asked Questions

We believe you should have every answer before you buy — not after.

Why is it only $11.89 if it’s pharmaceutical-grade?

No retail shelf space fees. No influencer deals. No 14 layers of management. We sell direct on Amazon. Our margin is small. Our formula is not.

Is it safe for sensitive skin?

Fragrance-free. Paraben-free. Sulfate-free. SAP works at a gentle pH range — no stinging, no redness. Ceramide 3 actively supports barrier function for sensitive skin.

How long does it last?

30ml bottle lasts 6-8 weeks with daily use (2-3 drops morning and evening). SAP remains stable until the last drop — no oxidation, no degradation.

What makes this different from other Vitamin C serums?

Most use L-Ascorbic Acid which oxidizes within weeks. We use SAP at 10% — stable, effective, gentle. Plus Ceramide 3 at functional concentration. Most brands list ceramides at 0.01%. That’s label decoration, not skincare.

Your Barrier Comes First.
Everything Else Works Better After.

10% Stable Vitamin C. Ceramide 3 Inside. Eight actives at functional concentrations. $11.89.

Why This Vitamin C Serum Is Different

Most brightening serums use unstable Vitamin C that oxidizes in weeks. The Serum C+E is a stable vitamin C serum built on Sodium Ascorbyl Phosphate — a SAP serum that converts to active Vitamin C only inside your skin. Combined with Vitamin E for synergistic antioxidant protection, this vitamin C and E serum neutralizes free radicals before they damage your barrier. As an antioxidant face serum, it doesn’t just brighten — it protects. But what makes it a true skin barrier serum is the Ceramide 3 foundation: the same lipid your barrier is built from. Add Hyaluronic Acid for deep hydration and Aloe Vera for a soothing, irritation-free base — and you get a ceramide serum that brightens, shields, and rebuilds in one step. See the full Vitamin C and ingredient science behind every drop.