DEFY C+ Serum | 4oz Backbar

Professional-Volume Dual-Source Vitamin C Brightening Serum.DEFY C+ delivers the same dual-source stabilized Vitamin C system — Tetrahexyldecyl Ascorbate (oil-soluble) + Sodium Ascorbyl Phosphate (water-soluble) + Ferulic Acid stabilizer — in a professional 4oz backbar size designed for high-frequency facial treatment use. The same formula your clients will take home in the 1oz retail size, at the volume your treatment room demands.The Dual-Source Vitamin C System — Why It Matters Tetrahexyldecyl Ascorbate (THA) — oil-soluble Vitamin C. Penetrates the lipid layer of the skin barrier directly, reaching deeper dermal layers where collagen synthesis and melanin regulation occur. More stable than L-Ascorbic Acid. Does not require low pH to be effective. Sodium Ascorbyl Phosphate (SAP) — water-soluble Vitamin C. Converts to active ascorbic acid on the skin surface. Documented brightening, antioxidant, and mild antimicrobial activity. Stable at physiological pH. Ferulic Acid — stabilizes both THA and SAP, prevents oxidative degradation, and amplifies combined antioxidant efficacy. The clinical standard for Vitamin C serum stabilization. Together: comprehensive brightening, antioxidant defense, and collagen support across both phases of the skin barrier.Treatment Room EconomicsThe 4oz (118mL) backbar bottle yields approximately 60–80 facial applications at standard protocol dosing (1–2 pumps per treatment). At $110 wholesale cost: Cost per treatment: approximately $1.38–$1.83 per facial Suggested retail service add-on value: $10–20 per treatment as a premium brightening serum step Retail companion: 1oz | $70 MSRP — the natural home care close for every client asking what you used to brighten their skin Clinical Ingredient AnalysisCannabidiol (CBD) — Organic Hemp-Derived | THC ≤0mg CBD modulates CB2 receptor activity in the skin's immune cells, reducing inflammatory cytokine signaling. Addresses the root cause of post-inflammatory hyperpigmentation (PIH) — the inflammatory cascade that triggers excess melanin production after acne, procedures, or environmental stress. Particularly valuable in a professional brightening protocol where post-procedure inflammation is a primary concern. Non-intoxicating. Non-detectable THC on every batch COA.Organic Squalane Stable, plant-derived analog of the skin's own squalene. Lightweight, non-comedogenic lipid-phase hydration and primary delivery vehicle for Tetrahexyldecyl Ascorbate. Appropriate for all skin types including oily and acne-prone.Organic Grapeseed Oil (Vitis vinifera) Rich in linoleic acid and oligomeric proanthocyanidins (OPCs). Lightweight, rapidly absorbing, non-comedogenic. Complements the Vitamin C antioxidant system with additional photoprotective antioxidant activity.Organic Hemp Seed Oil Omega-rich, ceramide-supportive, non-comedogenic. Supports barrier function and moisture retention. Contains no cannabinoids — distinct from CBD.Organic Vitamin E Oil (Tocopherol) Works synergistically with Vitamin C and Ferulic Acid. The classic Vitamin C + E + Ferulic Acid combination is one of the most well-documented antioxidant protocols in clinical skincare.Cetearyl Olivate + Sorbitan Olivate — Lamellar Emulsion System Olive-derived emulsifiers enhancing active ingredient absorption and delivering the lightweight, non-greasy texture appropriate for a morning brightening serum.Protocol Integration Apply after cleansing and toning, before moisturizer and SPF Morning use — always follow with SPF; Vitamin C increases photosensitivity Appropriate for brightening, anti-aging, hyperpigmentation, and post-procedure protocols Compatible with all skin types including sensitive; avoid same-step use with niacinamide Appropriate for Fitzpatrick I–VI; particularly effective for PIH on Fitzpatrick III–VI Full Ingredient DeckDistilled Water, Tetrahexyldecyl Ascorbate, Sodium Ascorbyl Phosphate, Organic Squalane, Organic Grapeseed Oil, 1,3 Propane Diol, Glyceryl Oleate Citrate, Caprylic/Capric Triglyceride, Cetearyl Olivate, Sorbitan Olivate, Organic Vitamin E Oil, Organic Hemp Seed Oil, Heptyl Undecylenate, Organic Vegetable Glycerin, Glyceryl Stearate, Cetearyl Alcohol, Ferulic Acid, Cannabidiol (from Organic Hemp), Citric Acid, Sodium Gluconate, Xanthan Gum, Organic Lemongrass Essential Oil, Benzyl Alcohol, Salicylic Acid, Sorbic Acid.CBD: Organic Hemp-Derived | Total THC: ≤0mg | Size: 4oz / 118mLSafety, Compliance & Transparency Third-party batch tested: potency, microbials, heavy metals, residual solvents — COAs available on request Formulated and manufactured in our CDPHE-licensed Colorado lab Vegan. PETA Certified Cruelty-Free. Contains Organic Lemongrass Essential Oil — patch test recommended for fragrance-sensitive clients Always follow with SPF — Vitamin C increases photosensitivity Train staff to use cosmetic-compliant language: brightening, clarifying, antioxidant defense — not treating or curing disease. This product is not intended to diagnose, treat, cure, or prevent any disease. Rooted in Science. Created with Intention. Made with Love.