PROTECT OIL and.bloom (limited edition) - 10% Tetrahexadcyl Ascorbate
Antioxidant Oil-Gel Vitamin C
Choose options
Protect Oil was created as a daily antioxidant shield — a superfood-rich treatment that envelops the skin in lipid-based nourishment while delivering a clinically advanced form of vitamin C. Blueberry extract and plant CO₂ extracts help calm inflammation, protect against blue light exposure, and restore visible vitality to dull or fatigued skin.
At the center of this formula is tetrahexyldecyl ascorbate, a stable, fat-soluble vitamin C derivative with exceptional penetration due to its lipid structure. Studies suggest it may improve the appearance of pigmentation, support collagen production, and help reduce visible signs of environmental exposure. Its compatibility with retinal makes it a valuable part of nighttime routines as well.
This versatile oil-gel can be used daily as a protective treatment, blended into other serums for boosted antioxidant support, or tapped onto high points of the face as a natural makeup finisher.
Result: With consistent use, skin appears brighter, more elastic, deeply nourished, and visibly more resilient.
Housed in a 100% plastic-free aluminum tube with an aluminum cap, designed for full recyclability and reduced environmental impact. Outer carton is FSC-certified and printed with vegetable-based inks.
Hydrogenated Ethylhexyl Olivate, Hydrogenated Olive Oil Unsaponifiables +*, Camellia Oleifera (Camellia) Seed Oil+**, Organic Oenothera Biennis (Evening Primrose) Oil+*, Tetrahexyldecyl ascorbate, Rosa Canina (Rose Hip) Seed Oil+**, Glycerin, Coco-Caprylate/Caprate, Aqua, Sucrose Laurate, Sucrose Stearate, Vaccinium Myrtillus (Blueberry) Seed Oil +*, Psoralea Corylifolia Seed Oil, Sodium Hyaluronate+*, Hippophae Rhamnoides (Sea Buckthorn Berry)Pulp Extract+*, Tocopherol (mixed)+*, Citrus reticulata Essential Oil, Lavandula angustifolia mill. Essential Oil*, Salvia sclarea Essential Oil*, Jasminum sambac (L.) Aiton Absolute
KEY ACTIVES
- A highly stable, lipid-soluble vitamin C derivative known for exceptional penetration and low irritation potential. Helps brighten hyperpigmentation, reduce signs of photo-exposure, support collagen synthesis, and enhance retinal performance when paired together.
- Rich in anthocyanins and antioxidants that help neutralize free radicals, calm visible redness, and support barrier integrity. Blueberry helps protect against digital pollution and oxidative stress.
- A nutrient-dense extract containing carotenoids, tocopherols, and omega-rich lipids. CO₂ extraction preserves bioactive compounds in their purest form, supporting barrier repair, reducing visible redness, and improving skin elasticity.
- Biomimetic lipid esters that mirror the skin’s natural sebum composition. Improve barrier function, enhance ingredient penetration, and deliver a soft, cushioned finish without heaviness.
HOW TO USE
Warm a pearl-size amount between fingertips and press into the face, neck, and décolleté as your final step. Can be used alone as a moisturizer or layered over serums and creams for additional radiance and lipid support.
AUse morning and evening depending on your routine.
- AM: Apply after water-based serums and before SPF for antioxidant protection and a smooth, radiant base.
- PM: Layer over Renew PM or retinol to replenish lipids and support nighttime recovery.
- For maximum radiance: Apply after C Serum to combine water-soluble and lipid-soluble vitamin C phases.
- As a finishing layer: Press gently onto high points of the face for a natural glow.
Use a pearl-sized amount for the full face, neck and décolleté, adjust slightly depending on dryness or climate.Pat gently to enhance efficacy. Smooth evenly with upward strokes.
A silky, cushiony oil-gel that transforms into a nourishing lipid layer upon contact with the skin, leaving a smooth, radiant, non-greasy finish.
Inspired by Marin County gardens — a quiet blend of Meyer lemon blossom, night-blooming jasmine, and clary sage.
TIPS FROM THE SPA
Born in the spa, this formula reflects the need for a vitamin C treatment gentle enough for daily use yet potent enough to support collagen, lipid repair, and radiance recovery. Estheticians reach for Protect Oil to finish treatments with a glowing, antioxidant-rich cushion.
Layer Protect Oil over C Serum to merge water-soluble and lipid-soluble vitamin C phases. This mirrors professional protocols for multi-depth brightening: water-soluble ascorbic complexes penetrate first, while lipid-soluble Tetrahexadecyl Ascorbate absorbs into the deeper lipid layers to support collagen from below.
Apply Protect Oil after Renew PM or other retinaldehydes. Its lipid structure buffers dryness while Tetrahexadecyl Ascorbate supports collagen pathways. This pairing reflects spa logic: stimulation first, then lipid recovery to maintain consistency and reduce irritation.
Summer, High Altitude, Outdoor Days
For environments with intense UV, wind, or altitude shifts, practitioners layer for multi-phase protection. Start with XO Essence or Hydrate Serum for foundational hydration, follow with Defense Serum for antioxidant and environmental shielding, then apply a pearl-size amount of Protect Oil to reinforce the lipid barrier and slow moisture loss. Finish with Shield Primer and SPF. This technique creates a treatment-grade support system for long days in the sun, mountains, or high-exposure climates.
For winter, cold climates, or chapped lips, apply a thick layer of your lip cream, then seal with a cushioned layer of Protect Oil. This creates an occlusive, lipid-rich mask that softens texture overnight. Wake up to the smoothest, most supple lips — a technique estheticians rely on during seasonal dryness.
Press a small amount onto cheekbones, temples, and brow bones for a subtle, post-facial radiance that enhances natural contours and also great as a lip gloss
Need help?
Frequently Asked Questions
THD Ascorbate is fat-soluble, highly stable, and penetrates deeply into the lipid matrix. It brightens tone, supports collagen, and is significantly less irritating than L-ascorbic acid.
Yes. THD Ascorbate is associated with visible improvements in brightness, tone uniformity, and overall radiance — especially when used consistently within a balanced routine that includes hydration and sun protection.
Yes — and we specifically recommend pairing it only with retinaldehyde (like Renew PM), not stronger forms of retinoids. Protect Oil’s lipid base helps buffer dryness, while THD Ascorbate complements retinaldehyde’s collagen-supportive benefits.
No. Its biomimetic lipid esters and lightweight oils absorb smoothly without heaviness, making it suitable for most skin types.
Yes. Vitamin C, sea buckthorn CO₂, and blueberry seed oil work synergistically to enhance luminosity, elasticity, and visible tone clarity.
Absolutely. Combining a pearl-size amount with XO Essence, Hydrate Serum, or other serums creates a lighter, more fluid texture while boosting antioxidant and lipid support — ideal for warmer climates or daytime use.
Most users notice immediate glow, with visible improvements in brightness, texture, and even tone appearing over 2–4 weeks of consistent use.