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Apply a small amount of the product onto a clean area of skin on the upper forearm.
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Keep the area dry.
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If the product has a specified duration of use, rinse off after this time has elapsed. Otherwise rinse off after 24 hours.
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If any redness, burning, itching, blistering or irritation is observed at any time throughout the test, do not use the product.
Step 2: Treat
The Ordinary PHA 5% Exfoliating Lip SerumPHA 5% Exfoliating Lip Serum
Step 2: Treat
The Ordinary PHA 5% Exfoliating Lip SerumPHA 5% Exfoliating Lip Serum
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Targets Textural Irregularities, Barrier Support, Dryness, Dehydration
Suited to All Skin Types
Format Serum: Water-Based
Overview
Discover if this product is right for you:
Product Details
Testing Shows
Highlights
- ph
- 3.5-4.0
- water-free
- No
- alcohol-free
- Yes
- oil-free
- Yes
- silicone-free
- Yes
- vegan
- Yes
- gluten-free
- Yes
- cruelty-free
- Yes
PHA 5% Exfoliating Lip Serum is a gentle chemical-based exfoliator for lips with 5% gluconolactone and 1.5% alpha hydroxy acids to smooth and hydrate lips. Gluconolactone is a polyhydroxy acid (PHA) that works to dissolve the structures that hold dead skin cells together. Due to their larger molecular weight, PHAs work on the surface of the skin to offer mild exfoliation, making them suitable for sensitive skin.
This formulation also includes a high concentration (>50%) of glycerin to improve hydration and retain moisture as well as ectoin to support the skin barrier and offer long-term hydration. It also contains a black carrot extract which is known for its antioxidant properties and provides a mild pink colour to the formulation. This plant-derived ingredient may contribute to colour variations in the product ranging from vivid pink to pale peach however should not impact efficacy.
PHA 5% Exfoliating Lip Serum helps to promote skin renewal on the lips to improve their overall appearance and texture over time and can be layered under Squalane + Amino Acids Lip Balm to gently remove dry, dead skin and hydrate lips overnight.
Note: You may notice a slightly tangy taste when using this product. This comes from the exfoliating acids which help to gently renew and smooth lips.
How to Use
How to Use
- Apply a thin layer onto clean, dry lips on alternate evenings as needed.
- Allow the product to dry.
- Apply lip balm as needed throughout the day.
- If irritation occurs, rinse off, cease use, and consult a physician.
- Use only as directed on unbroken skin.
- Avoid contact with eyes.
- Patch testing prior to use is advised.
- Keep out of reach of children.
- It is recommended that prior to exposure to the sun, users apply sunscreen or an SPF lip balm.
Product & Safety Guidance

Recycling Instructions
Before Recycling:
Empty the contents of the container. Remove cap, lid, dropper, pump, and other components and rinse the bottle/jar with water.
Packaging items with adhesive-based labels:
Contact your local recycling facility to ensure
recyclability via curbside recycling program.
Otherwise, dispose via our in-store recycling program.
Serum/Oil, Shampoo, Conditioner, Shower Gel, Lotion, Hand Soap Bottles:
#1 PETE & #2 HDPE and glass bottles are recyclable
through the majority of local curbside recycling programs.
# 5 PP bottles are usually recyclable through local
curbside recycling programs. Please contact your local recycling facility to
ensure recyclability.
Otherwise, dispose via our in-store recycling program.
Dropper Lids:
Dispose of via our in-store recycling program.
Disclaimer:
We work to provide our customers with accurate guidelines on packaging recyclability; however, please ensure your city or municipal program is consulted before recycling an item.
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Formulation Compatibility Tool
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