🫧 Pure Oxygen + THD Vitamin C for bright, energized skin
🫧 Non sticky, no pill texture
🫧 THD Vitamin C brightening support







this lightweight serum resurfaces, energizes, calms, and brightens in one step, setting skin up for a smooth, lit-from-within glow.
benefits
- brightens dull skin and supports renewal with pure oxygen
- boosts radiance and refines texture with a trio of gentle AHAs (glycolic, lactic, malic)
- visibly evens tone and softens dark spots (vitamin C defends and brightens)
- calms redness and comforts sensitive skin (oxygen, aloe, cucumber, and watermelon extracts soothe)
hero actives
- Oxygen re-energizes surface cells for visible glow
- Glycolic, lactic, malic acids sweep away dull surface cells
- Vitamin C (THD ascorbate) brightens and shields from free radicals
- Glycerin + sodium PCA draw in and lock down hydration
- Aloe & botanical extracts cool, calm, and replenish
- Amino acids (arginine, proline) support collagen resilience
how to use
- apply 3–5 drops to clean, dry skin morning and/or night.
- pat until absorbed or mix the drops into Infinite Aura Moisturizer for a one-and-done glow.
- follow with moisturizer (and SPF by day) to seal in the benefits.
Why it will not pill
- Oxygen fresh finish: glow with a clean set
- Oil-soluble Vitamin C: THD sits comfortably in a silky base so it layers under SPF and makeup without rolling.
- Non sticky finish: Dries down clean so foundation grips smoothly.
- Mix-in ready: Add drops to Infinite Aura Moisturizer for a one-step glow.
Makeup-friendly by design
Kay’s Glow features THD Vitamin C in a fast-absorbing base with a gentle AHA trio to refine the look of texture. That combination helps makeup spread evenly while the serum supports a brighter, more even look. Use alone or mix into moisturizer. Let it set, then apply SPF and makeup.
The serum uses THD Vitamin C and Oxygen to create a fresh looking glow with a clean set. Let it dry down, then moisturize, SPF, and makeup.

Ingredient receipts
- THD Vitamin C: oil-soluble, brightening antioxidant
- Glycolic + Lactic + Malic: gentle smoothing trio
- Glycerin + Sodium PCA: hydration magnets
- Aloe + Watermelon + Beet: soothe and replenish
Oxygen and THD Vitamin C headline the brightening step, with gentle AHAs and hydrating humectants to keep the canvas smooth.
Your makeup-ready morning
- Step 1: Cleanse
- Step 2: Kay’s Glow Serum. Let it set 60 to 90 seconds.
- Step 3: Moisturizer or mix serum into moisturizer
- Step 4: Broad-spectrum SPF
- Makeup tips: Apply thin layers. Avoid rubbing. Press foundation with a sponge for less disruption.
Bohemia Skin vs popular brands
Feature | Kay’s Glow Serum (1 oz $79.99) | Sunday Riley C.E.O. 15% (1 oz $85) | SkinCeuticals C E Ferulic (1 oz $185) | Youth To The People 15% Vitamin C + Caffeine (1 oz $59) |
---|---|---|---|---|
Vitamin C type | THD (oil-soluble) | THD | L-ascorbic + E + ferulic | Ethyl Ascorbic Acid + THD + MAP |
Makeup-friendly layering | ✓ | ✓ | ✓ | ✓ |
AHA smoothing built-in | ✓ | ✗ | ✗ | ✗ |
Price per oz | $79.99 | $85.00 | $185.00 | $59 |
Need help?
Frequently Asked Questions
Our Oxygen + Vitamin C base is designed to set clean so makeup applies smoothly.
It is designed to be non sticky and to layer clean. Let it set before SPF and makeup. Use thin layers and press product in.
Yes. Add 3–5 drops into Infinite Aura Moisturizer for a single step. This also helps minimize pilling risk.
About 60 to 90 seconds so the serum sets. Then apply moisturizer, SPF, and makeup.
Yes. THD Vitamin C is oil-soluble and generally layers well. Always patch test when combining actives.
Allow full dry-down and use SPF. Store the bottle away from heat and light to maintain freshness. General Vitamin C storage best practices apply.
Smooth canvas. Brighter look.

Before The System

After 2–4 weeks of consistent use
Let customers speak for us
Glow that wears all day