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Highlights
Summary
Your Lips Have Chemistry. Powered by PHAs, The Ordinary's PHA 5% Exfoliating Lip Serum targets the surface of your lips to exfoliate, hydrate, and plump. The result? Smoother, healthier-looking lips—with undeniable chemistry.
Key Ingredients
- Gluconolactone (Polyhydroxy Acid): Helps gently exfoliate away dead skin, for a smoother lip appearance.
- Ectoin: Supports the skin barrier to help retain moisture and protect against external aggressors.
- Glycerin: Helps restore lip hydration to support the natural exfoliation process.
- Alpha Hydroxy Acids (Citric Acid, Malic Acid and Tartaric Acid): A combination of 3 alpha-hydroxy acids support exfoliation, while also imparting a sour taste to the formula.
- Daucus Carota Sativa (Black Carrot): An extract of black carrot rich in anthocyanins, known for their antioxidant properties
- *All ingredients in PHA 5% Exfoliating Lip Serum are considered food grade
Research Results
- Gentle Exfoliation: Gently exfoliates and smooths lips while respecting the barrier
- Smoothness: Promotes skin renewal for smoother-looking lips.
- Shine: Gives lip a more radiant shine
- Hydration: Increases moisture content by 30%* for plumper lips even when bare*
- *Clinical testing on 22 subjects after using product 3x/week for 2 weeks.
Item 2645081
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. Refer to our website for a patch test guide, regimen guide, and product compatibility. Keep out of reach of children. It is recommended that prior to exposure to the sun, users apply sunscreen or an SPF lip balm.
Glycerin, Aqua/Water/Eau, Gluconolactone, Ectoin, Daucus Carota Sativa (Carrot) Juice, Citric Acid, Malic Acid, Tartaric Acid, Sodium Hydroxide, Xanthan Gum, Potassium Sorbate, Sodium Benzoate.
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Reviews
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Ratings Distribution
Most Helpful Positive Review
Loved this product!
I've been using The Ordinary PHA 5% Exfoliating Lip Serum for a few weeks now and I'm honestly impressed. The texture is lightweight and absorbs quickly without feeling sticky or heavy, which is perfect for everyday use. After just a few applications, I noticed my lips felt smoother and looked more ...
Most Helpful Critical Review
Worth it for price
To start, I received this product free from the brand to test and review and I really didn't know what to expect. Although, this isn't a product I would necessarily go out of my way normally buy this is a product I enjoyed. I probably needed it more than I expected. It worked really well and erased ...
58 results
Love this product!
Gifted by the ordinary! I'm so impressed with this new lip serum! The texture is lightweight and silky, not sticky at all, and it glides on smoothly with the dropper. After just a couple of uses, my lips felt noticeably softer and smoother. I love that it gently exfoliates without any harsh scrubbing—perfect for someone like me with dry, sensitive lips. The formula has a light, refreshing feel, and it absorbs quickly while still leaving my lips hydrated. It's also easy to layer under lip balm or lipstick. At this price point, it feels like a luxury treatment for a fraction of the cost. If you deal with flakiness or rough texture on your lips, this is definitely worth trying. It's simple, effective, and exactly what I expect from The Ordinary—great results with no fuss.
Must have
Amazing product, I was really impressed and excited when I tried it, my lips felt so great and juicy! I do recommend it, also it's so convenient, you can just have it on your purse everyday and be ready to look great. I was gifted by the ordinary.


Soft, gentle renewal
I've been testing the new PHA 5% Exfoliating Lip Serum from The Ordinary, and it's quickly become a standout in my nighttime routine. The lightweight, water-based formula glides on smoothly and absorbs without stickiness. I use it on clean, dry lips before bed, and by morning, my lips feel noticeably softer and more even. There's a mild tingle at first, but it fades quickly and never feels irritating. After just a few uses, I noticed less flakiness and better texture overall. For anyone struggling with dry or rough lips, this is a gentle yet effective option to consider. Complimentary from theordinary.
Works great but packaging could be better
Love how smooth and soft this makes my lips; it exfoliates without drying them out. Only downside is the dropper applicator; it's a bit messy and feels wasteful. Would love to see it in a tube instead! Gifted by theordinary
Not a fan
Gifted by theordinary. I have been trying this product out and so far I'm not too fond of it. At first it feels nice very thin like oil type of consistency but not like a lip oil because it's not thick. Then over time it gets a tad stick and I don't like the way it feels on my lip and I would be sure not to get in your mouth either!