


10% Glycolic Acid Exfoliating Treatment
Radiance Renewal Serum (COMING SOON)
A periodic nighttime treatment with 10% glycolic acid to help remove accumulated surface cells and reveal skin that looks smoother, brighter, more even, and visibly radiant.
Designed as the renewal step of the Metrin Accelerated Performance System (APS).
Effective exfoliation, thoughtfully balanced for skin tolerance.
30 mL / 1 fl oz
- No added fragrance
- Not tested on animals
- 30-day return policy for individual products


What It Is
AP1 provides periodic accelerated exfoliation when your skin needs more than daily care.
It helps improve the appearance of:
Dullness · Rough Texture · Uneven-Looking Tone · Visible Dark Spots · Post-Blemish Marks · Congestion · Loss of Radiance
Glycolic acid effectiveness isn't determined by percentage alone. Formulation, pH, frequency of use, and individual skin tolerance all matter.

Why It Matters
Your skin naturally sheds surface cells, but accumulated cells can leave it looking dull, rough, uneven, or congested.
AP1 helps loosen and remove that buildup to reveal fresher-looking skin underneath.
Use it over the face or selectively on visible dark spots, post-blemish marks, uneven-looking areas, or localized rough texture.
Learn more
Key Ingredients
Known for: effective AHA exfoliation.
Helps: remove accumulated surface cells to support smoother, brighter, more even-looking skin.
Known for: humectant and moisture-binding properties.
Helps: provide supporting hydration within AP1.
Known for: skin-conditioning properties.
Helps: support the overall formula.
Complete the Ritual

Accelerated Performance System
Pair AP1 with AP2 Barrier Recovery Serum for the complete Accelerated Performance System.

Radiance Renewal Serum
AP1 — Renew
10% glycolic acid accelerated exfoliation.

Barrier Recovery Serum
AP2 — Recover
Hydration, soothing, conditioning, and barrier support.
Size & Usage
Size: 30 mL / 1 fl oz
At night: Cleanse thoroughly and allow skin to dry. Apply a thin layer of AP1 and leave on overnight.
Use 1–3 times weekly according to skin tolerance.
The following morning: Cleanse AP1 away. For Metrin users, the complete Metrin cleansing sequence is preferred. Apply AP2 Barrier Recovery Serum, then continue the appropriate remaining steps of your Metrin Skincare System.
Do not apply to broken, irritated, or actively inflamed skin.
Ingredients
Water (Aqua), Propanediol, Isodecyl Neopentanoate, Pentylene Glycol, Stearic Acid, Bisabolol, Glycerin, Xanthan Gum, Phenoxyethanol, Cetearyl Alcohol, Tocopherol, Sodium Citrate, Potassium Hydroxide, Dicetyl Phosphate, Ceteth-10 Phosphate, Niacinamide, Ethylhexylglycerin, Padina Pavonica Thallus Extract, Tetrasodium EDTA, Disodium EDTA.
Guarantee
Radiance Renewal Serum is covered by Metrin’s standard 30-day product guarantee.
The 180-day Skin Health Guarantee applies to the initial purchase of the full-size Metrin Skincare System for Her.
Size: 30 mL / 1 fl oz
At night: Cleanse thoroughly and allow skin to dry. Apply a thin layer of AP1 and leave on overnight.
Use 1–3 times weekly according to skin tolerance.
The following morning: Cleanse AP1 away. For Metrin users, the complete Metrin cleansing sequence is preferred. Apply AP2 Barrier Recovery Serum, then continue the appropriate remaining steps of your Metrin Skincare System.
Do not apply to broken, irritated, or actively inflamed skin.
Water (Aqua), Propanediol, Isodecyl Neopentanoate, Pentylene Glycol, Stearic Acid, Bisabolol, Glycerin, Xanthan Gum, Phenoxyethanol, Cetearyl Alcohol, Tocopherol, Sodium Citrate, Potassium Hydroxide, Dicetyl Phosphate, Ceteth-10 Phosphate, Niacinamide, Ethylhexylglycerin, Padina Pavonica Thallus Extract, Tetrasodium EDTA, Disodium EDTA.
Radiance Renewal Serum is covered by Metrin’s standard 30-day product guarantee.
The 180-day Skin Health Guarantee applies to the initial purchase of the full-size Metrin Skincare System for Her.
FAQ
Yes. AP1 may be applied selectively to visible dark spots, post-blemish marks, uneven-looking areas, or localized rough texture.
AP1 helps remove accumulated dead surface cells that may contribute to clogged pores and congestion. It is not an acne medication.
Yes. AP1 can be used independently, but Metrin recommends the complete APS when accelerated exfoliation and recovery are the goal.
Use AP1 at night1–3 times weekly according to skin tolerance. More frequent exfoliation does not necessarily produce better results.
