Introducing Trilogy's New Booster Serums: Fresh-Activated Vitamin C Skincare With Visible Results in 2 Weeks
Freshly-activated, targeted skincare
Your routine, elevated.
Skincare isn’t one size fits all and neither is healthy skin. That’s where our NEW Booster Serums come in. Designed to layer seamlessly into your routine, they deliver high performance actives exactly where your skin needs them most.
Introducing Trilogy’s next generation of freshly-activated Booster Serums. A trio of targeted 2-week treatments designed to personalise your routine and deliver visible results through potent, natural actives. Powered by gold-standard vitamin C (L-ascrobic acid), each formula is focused on a clear skin goal: radiance, firmness or hydration.
What makes these boosters different?
At the heart of this range is our innovative fresh‑activation system. Highly active pure L‑ascorbic acid (vitamin C) is most effective when used fresh, to preserve potency, each booster keeps the vitamin C separate in the cap until activation. With a simple pop, shake, apply ritual, the formula is activated right before use, ensuring maximum performance and freshness.
The booster line up
GLOW
Vitamin C+ Booster
A brightening formula designed for dull, uneven or tired looking skin. Fresh 15% pure vitamin C visibly brightens and refines uneven tone. Vitamin E and ferulic acid support antioxidant protection, while rosehip oil and hyaluronic acid replenish hydration.
100% noticed improved radiance in just two weeks*
Best for: Dullness, pigmentation and uneven tone
Skin type: Normal to maturing
Highly potent, not recommended for sensitive skin.
100% noticed improved radiance in just two weeks*
"The most potent over-the-counter brightening serum I have ever used. You can feel the active ingredients in it, like you would at a clinic having a facial."
- S. Atkinson
FIRM
Pro-Collagen+ Booster
An anti-ageing focused formula to support firmness and skin resilience. Fresh 6% pure vitamin C works alongside collagen amino acids, a rose bioactive and a retinol like peptide to help improve elasticity and bounce.
100% noticed improved firmness in just two weeks^
Best for: Fine lines, loss of firmness and ageing skin
Skin type: All, especially maturing
100% noticed improved firmness in just two weeks^
"I've honestly never seen such drastic results from a serum! My skin is significantly firmer and more taut."
- J. Wauchop
PLUMP
Polyglutamic+ Booster
A hydration focused formula for sensitive & dehydrated skin. Fresh 2% pure vitamin C works alongside polyglutamic acid and multi weight hyaluronic acid, to deliver deep, lasting hydration, while aloe vera and a prebiotic microalgae help calm and support the skin barrier.
95% noticed improved hydration in just two weeks**
Best for: Dehydration, redness and sensitivity
Skin type: Sensitive, dry or combination
Dermatologically tested on sensitive skin.
95% noticed improved hydration in just two weeks**
"It delivered on significantly increasing the hydration in my skin, which now feels soft and smooth and looks more even."
- E. Mechen
How to use
1. POP the cap to release fresh vitamin C.
2. SHAKE to dissolve the vitamin C into the base serum.
3. Replace cap with pipette.
4. APPLY to cleansed skin morning and night, for a skin-boost.
Fresh activation. Targeted results. Whether you are boosting glow, firming skin or restoring hydration, these boosters are designed to work with your skin, not overwhelm it.
Which Booster Serum is right for your skin?
Frequently asked questions
What makes Trilogy's Booster Serums unique?
Trilogy's Booster Serums use a fresh-activation system that keeps pure L-ascorbic acid - the most potent and biologically active form of vitamin C - sealed separately in the cap until you're ready to use it. Most vitamin C serums begin to oxidise and lose effectiveness from the moment they're opened. By activating your serum fresh at home with a simple pop-and-shake ritual, you get peak-potency vitamin C every time you apply.
This is also why these treatments are best used within 2-4 weeks.
Why is the vitamin C kept separate?
L-ascorbic acid is highly unstable - it begins to degrade when exposed to air, light, and water, which reduces its effectiveness over time. By storing the vitamin C as a dry powder inside the cap, separate from the serum base, we protect its potency until the moment of activation.
Once you pop the cap and shake to blend, you're applying the freshest, most effective dose of vitamin C possible - with none of the degradation common in pre-mixed formulas.
What makes polyglutamic acid beneficial for skin?
Polyglutamic acid (PGA) is a powerful humectant that can hold 4× more moisture than hyaluronic acid, forming a protective film that reduces water loss, plumps skin and enhances brightness.
In the Polyglutamic+ Booster, PGA is combined with three molecular weights of hyaluronic acid to deliver hydration at multiple layers of the skin - making it ideal for dry, dehydrated, or sensitive skin types.
Is Polyglutamic+ Booster suitable for sensitive skin?
Yes - the Polyglutamic+ Booster is the gentlest of the three Trilogy Booster Serums and has been dermatologically tested on sensitive skin. It contains the lowest concentration of vitamin C (2% fresh L-ascorbic acid) alongside calming ingredients including aloe vera and a prebiotic microalgae to help support the skin barrier and reduce redness.
If you have reactive or easily irritated skin, this is the booster we'd recommend starting with.
Can I use a Booster Serum with the rest of my skincare routine?
Yes - Booster Serums are designed to layer seamlessly into your existing routine. Apply to cleansed skin before your moisturiser, morning and night, for the full two-week treatment period.
For best results, use consecutively and dispose of the serum four weeks after activation.
If you're new to vitamin C, start with the Polyglutamic+ Booster (2% vitamin C) before working up to the higher-strength Vitamin C+ Booster (15% vitamin C).
*Based on 14-day consumer study on 23 volunteers using Vitamin C+ Booster.
^Based on 14-day consumer study on 19 volunteers using Pro-Collagen+ Booster
**Based on 14-day consumer study on 19 volunteers using Polyglutamic+ Booster.
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NEW Booster Serums: Fresh-Activated Vitamin C for Real Results
