No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus) — Efficacy 3.5/5.0, Safety 4.4/5.0 | DemythSkin
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[ DemythSkin Verdict ]
No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus)
No7

No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus)

SerumAnti-Aging
Efficacy
Basic
3.5 / 5.0
Safety
Safe
4.4 / 5.0
System Verdict
This is a very focused peptide serum with solid anti-ageing potential but minimal supporting actives around it. The efficacy hinges almost entirely on a high concentration of the Matrixyl 3000 complex (palmitoyl tripeptide-1 + palmitoyl tetrapeptide-7) and a simple hydrating gel base; there are no retinoids, strong antioxidants, or additional clinically proven anti-ageing actives to boost results, but as a dedicated peptide booster layered under other treatments it is well-positioned to deliver incremental wrinkle-smoothing benefits over months of consistent use.
Active Ingredients Detected
A Tier: Good BasicsProven Results
Glycerin
B Tier: Supporting IngredientsPromising Ingredients
Aluminum Starch OctenylsuccinateSorbitan LaurateAcetyl Dipeptide-1 Cetyl EsterPalmitoyl Tripeptide-1Palmitoyl Tetrapeptide-7
D Tier: Potential IrritantsBe Cautious
T-Butyl Alcohol
What Each Ingredient Does
Aqua (Water/Eau)
Solvent and vehicle
Glycerin
Humectant for skin hydration
Butylene Glycol
Humectant and solvent
Aluminum Starch Octenylsuccinate
Oil-absorbing texture modifier
Polyacrylate Crosspolymer-6
Thickener and stabilizer
Sorbitan Laurate
Emulsifier and surfactant
Phenoxyethanol
Preservative
Sodium Lactate
Humectant and pH buffer
Hydroxyethylcellulose
Thickener and gelling agent
Carbomer
Thickener and viscosity control
Caprylyl Glycol
Humectant and preservative booster
Acetyl Dipeptide-1 Cetyl Ester
Signal peptide for soothing
Polysorbate 20
Solubilizer and emulsifier
Ethylhexylglycerin
Preservative booster and humectant
Tetrasodium EDTA
Chelating agent to stabilize formula
Potassium Hydroxide
pH adjuster
T-Butyl Alcohol
Solvent / processing aid
Palmitoyl Tripeptide-1
Collagen-supporting peptide
Palmitoyl Tetrapeptide-7
Anti-ageing peptide complex component
Full Ingredient List (INCI)

Aqua (Water/Eau), Glycerin, Butylene Glycol, Aluminum Starch Octenylsuccinate, Polyacrylate Crosspolymer-6, Sorbitan Laurate, Phenoxyethanol, Sodium Lactate, Hydroxyethylcellulose, Carbomer, Caprylyl Glycol, Acetyl Dipeptide-1 Cetyl Ester, Polysorbate 20, Ethylhexylglycerin, Tetrasodium EDTA, Potassium Hydroxide, T-Butyl Alcohol, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7.

Frequently Asked

Is No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus) worth it?

No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus) scores 3.5 out of 5.0 for efficacy (Basic) and 4.4 out of 5.0 for safety (Safe) on DemythSkin's independent ingredient analysis. This is a very focused peptide serum with solid anti-ageing potential but minimal supporting actives around it. The efficacy hinges almost entirely on a high concentration of the Matrixyl 3000 complex (palmitoyl tripepti

What are the key active ingredients in No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus)?

No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus) contains no gold-standard actives — its formula is built on supporting and base ingredients rather than clinically transformative actives.

Does No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus) contain fragrance or known irritants?

DemythSkin flags these ingredients in No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus) as potential irritants: T-Butyl Alcohol.

How is No7 Laboratories Line Correcting Booster Serum (Matrixyl 3000 Plus) scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-08-04. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.