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When I visited the DECIEM labs in Toronto, I had the absolute treat of trying the brand-new The Ordinary PHA 5% Exfoliating Lip Serum ahead of its global launch on 23rd September. If you’re already a fan of The Ordinary’s science-first skincare, you’re going to love how they’ve brought that same clever approach to lip care. Here is everything you need to know.
Why Do Lips Need The Ordinary PHA 5% Exfoliating Lip Serum?
Our lips are much thinner than the rest of our skin, with only 3–5 cellular layers compared to around 16 on the face. They also don’t contain oil glands, which makes them especially prone to dehydration, flakiness, and discomfort.
That’s why The Ordinary PHA 5% Exfoliating Lip Serum is such a clever innovation. It works to gently remove dead skin while boosting hydration, helping lips feel smooth, soft, and healthy.
Joe Basham, Senior Science Communications Manager at DECIEM, sums it up beautifully:
“Lip skin is thinner and more delicate than facial skin, making it more vulnerable to water loss. PHA’s offer both gentle exfoliation and hydration support, gently renewing the skin’s surface while helping to promote its natural renewal.”
How to Use The Ordinary PHA 5% Exfoliating Lip Serum
- Apply a thin layer onto clean, dry lips in the PM
- Allow it to dry before applying a lip balm
- Use two to three times per week
FAQs About The Ordinary PHA 5% Exfoliating Lip Serum
Can I use The Ordinary PHA 5% Exfoliating Lip Serum every day?
The Ordinary recommend using this every other day at night.
Will The Ordinary PHA 5% Exfoliating Lip Serum sting?
You may feel a light tingling, but it’s very comfortable and fades quickly.
Does The Ordinary PHA 5% Exfoliating Lip Serum replace lip balm?
It’s more of a treatment than a balm. You can still layer a nourishing balm over it if you like.
Is The Ordinary PHA 5% Exfoliating Lip Serum tinted?
No, while the serum looks pink in the tube, the colour disappears completely on application.
What is The Ordinary PHA 5% Exfoliating Lip Serum release date?
This new product is set to launch 23rd September 2025 at The Ordinary*. Sign up for a launch alert below.
Final Thoughts
I’m really excited about The Ordinary PHA 5% Exfoliating Lip Serum. It’s exactly what I’d expect from The Ordinary – smart, affordable, and rooted in real skincare science. If you’ve struggled with scrubs or constant dryness, this is such a brilliant upgrade for your routine.
I love to let it dry and then apply my favourite lip balm from La Mer. It’s a serious case of a high low combo! If you are looking for a lip balm, but want something more affordable than La Mer, have a read of Best Lip Balms for Dry Lips for 2025.
Keep me informed on this and all The Ordinary products
