The Vitamin C Activation System
The Vitamin C Activation System
Freshly activated L-Ascorbic Acid, mixed at the moment of use. Maximum potency. Every time.
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Pure L-Ascorbic Acid. Kept dry. Applied fresh. No degradation. No compromise.
Real Results. Real People.

Dale · The Complete Vitamin C System · Baseline · Week 6 · Week 10 · No filters
Trial Results
8-week independent trial


What This System Does
The Vitamin C Activation System keeps 100% pure L-Ascorbic Acid completely dry and separate until the moment you use it. Mix the Activation Powder with the Activation Booster immediately before application and you deliver freshly activated Vitamin C to your skin at full potency — something no pre-mixed serum can offer.
Used alongside the Advanced THD Vitamin C Serum, this is the complete Intrinsic Vitamin C protocol.
What Our Trial Participants Said
"My skin is softer and smoother. I have really enjoyed using both the serum and the booster — they feel really good and my skin enjoys the feel of them."
Melissa
Vitamin C Activation System · 8 weeks
"Skin feels smoother and my lines feel less pronounced. Skin tone feels better."
Jude
Vitamin C Activation System · 8 weeks
"Fine lines have softened — jaw and neck lines have improved."
Trial Participant
Vitamin C Activation System · 8 weeks
WHAT YOUR SKIN WILL FEEL
- A fresh, clean sensation at the moment of application
- Brighter, more even skin tone with continued use
- Smoother texture and softer fine lines over time
- Lighter appearance of pigmentation and sun spots
- The confidence of knowing your Vitamin C is at maximum potency every single time
THIS IS FOR YOU IF:
- You want the proven power of L-Ascorbic Acid without the degradation problem
- You already use the Advanced THD Vitamin C Serum and want to take your results further
- You are serious about your skincare and want a protocol that goes beyond a basic serum
- You want visible results that build progressively over time
- You won't compromise on ingredient quality or formula integrity
WHY FRESH ACTIVATION MATTERS
L-Ascorbic Acid is the most extensively studied form of Vitamin C in skincare. The research is clear — it supports collagen production, reduces pigmentation, protects against oxidative damage and improves overall skin quality.
The problem is stability. The moment L-Ascorbic Acid is mixed with water, it begins to oxidise and lose potency. By the time a traditional serum reaches your skin — weeks or months after it was manufactured — a significant proportion of the active ingredient has already degraded.
The Intrinsic Activation System solves this completely. The Powder is 100% pure L-Ascorbic Acid, kept completely dry in an airtight container. The Booster is the lightweight activation vehicle. Mix them immediately before application and you get freshly activated Vitamin C at full potency — every time, without exception.
No degradation. No compromise. Just Vitamin C that actually does what Vitamin C is supposed to do.
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Product Details
Key Ingredients
Ascorbic Acid (L-Ascorbic Acid) — Activation Powder
100% pure L-Ascorbic Acid — the most extensively researched form of Vitamin C in skincare. Kept completely dry until the moment of use to ensure maximum potency at every application. Supports collagen production, reduces pigmentation, protects against oxidative damage and improves overall skin quality.
Propanediol — Activation Booster
A lightweight, skin-compatible solvent that dissolves the Activation Powder quickly and evenly, ensuring seamless delivery of freshly activated Vitamin C to the skin.
Gluconolactone — Activation Booster
A gentle polyhydroxy acid (PHA) that supports skin hydration and surface renewal. Adds a mild exfoliating benefit to the activation step without irritation.
Calcium Gluconate — Activation Booster
Works in combination with Gluconolactone to support skin barrier function and comfort during the activation step.
Why Intrinsic
Most skincare products are formulated with fillers, stabilisers and synthetic ingredients that pad out the formula and dilute results. At Intrinsic Skincare we believe you should never have to choose between clean ingredients and visible results.
Every Intrinsic formula is naturopath-developed and built on a simple principle — only ingredients that genuinely serve your skin make it into the bottle. No fillers. No compromise. No hidden nasties.
This means higher concentrations of active botanicals and clinical ingredients, products that last longer, and results you can actually see and feel.
Clean. Clinical. Uncompromising.
Directions for use
Use 2–3 mornings per week alongside your Advanced THD Vitamin C Serum.
- Apply Hyaluronic Acid Serum
- Mix 3 pumps of Vitamin C Activation Booster with 1 slightly rounded scoop of Vitamin C Activation Powder until fully dissolved
- Apply to face and neck
- Wait 30–60 seconds
- Apply 1–2 pumps of Advanced THD Vitamin C Serum
- Follow with moisturiser and sunscreen
Mild tackiness after application is normal and will subside quickly.
Full Ingredient List
Vitamin C Activation Booster
Aqua, Propanediol, Gluconolactone, Sodium Benzoate, Calcium Gluconate
Vitamin C Activation Powder
Ascorbic Acid
Shipping & Delivery
United Kingdom
We ship to all UK mainland addresses via Royal Mail Tracked 48. Orders are processed within 1-2 business days.
Standard tracked delivery: 2-3 business days — £4.00
Free shipping on all orders over £30.
Returns
We want you to love your Intrinsic Skincare products. If you are not completely satisfied please contact us within 14 days of receiving your order.
Contact us at info@intrinsic-sc.com for all shipping and returns queries.