Say hello to your new skincare staple.

The KH Prebiotic Peptide Serum is an elevated version of the beloved Sheer Peptide Gel—now reformulated with a prebiotic boost for even better skin health. This clean, fragrance-free, non‑comedogenic serum nourishes your skin’s microbiome while delivering deep hydration and visible anti-aging benefits.

Why You'll Love It
Supports the skin microbiome with topical prebiotics, reducing inflammation and calming redness while reinforcing the skin’s natural barrier.
Peptide-rich formula featuring glycosaminoglycans that boost collagen production for firmer, more resilient skin.
Hydration powerhouse—hyaluronic acid locks in moisture, while sodium chondroitin sulfate shields collagen and elastin from UV-driven damage.

Who It’s For
All skin types—especially those dealing with redness, compromised barrier function, dehydration, or early signs of aging.
- Perfect for anyone who loves clinical performance but wants a lightweight daily serum that layers seamlessly.

How To Use
AM & PM: After toning or using a Koji Pad, apply 1–2 pumps to damp skin. Layer under sunscreen or moisturizer (or makeup) for a silky, hydrated base. Avoid applying over heavier skincare to prevent pilling.

Ingredient Highlights
Hyaluronic Acid
Deep hydration, plumping effect, fights photoaging.
Glycosaminoglycans
Boost collagen synthesis, improve elasticity.
Sodium Chondroitin Sulfate
UV protection, strengthens collagen and elastin.
Topical Prebiotics
Nourishes good bacteria, soothes inflammation.

Why It Matters: Science Meets Skin Wellness
At the core of every formula in the Karee Hays line is a clinical understanding of skin function—this serum is no exception. By blending peptides with prebiotics, it goes beyond surface-level hydration to nurture the ecosystem beneath, building long-term resilience and radiance.

Ideal Add-On To Your Routine
Morning: Pair with Koji Pads → Prebiotic Peptide Serum → Bright C Complex → SPF
- Evening: Use after treatment pads → Prebiotic Peptide Serum → moisturizer like Dream Cream or Creme Riche for overnight recovery
Available Now
- Size: 1 oz and 6 oz clinical size
- Price: Starting at $125 (1 oz)
- Free from parabens, phthalates, artificial dyes, fragrance, mineral oil—and always vegan and cruelty-free.

What Fans Are Saying
Users who loved Sheer Peptide Gel are thrilled by this upgraded version. With consistent use, many report reduced redness, smoother texture, improved firmness, and clearer skin tone.

The Takeaway
The KH Prebiotic Peptide Serum is high‑performance skincare made approachable—clinically driven, microbiome-supporting, deeply hydrating, and ideal for layering. Whether you’re working on barrier repair, balancing your complexion, or preserving youthful firmness, this serum delivers results you can see and feel.

Pro Tips
Use on damp skin to maximize hydration and absorption.
Avoid layering after heavy creams to minimize pilling.
Combine with antioxidant or brightening serums for amplified benefits.