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15 best retinol serums for 2025, tested by 358 women
Enjoy smoother, firmer-looking skin with our beauty lab's top picks

Retinol is rightly celebrated as a game-changing skincare ingredient. The holy grail for tackling a raft of skin concerns, from fine lines and wrinkles to hyperpigmentation and blemishes, the best retinol serums can be true anti-ageing heroes.
Once only found in dermatology clinics but now available over-the-counter, retinol can speed up skin cell regeneration and boost collagen production to help smooth, firm and brighten your complexion. Ever the multi-taster, it can also help to unclog pores and prevent treat acne.
To find the best retinol serums for noticeable results, the Good Housekeeping Institute enlisted 340 panellists to help us test 21 brands. These are our top picks at a glance, but you'll find our detailed reviews below.
How we test retinoid serums
As a quick explainer, retinol is part of the family of lab-made vitamin A derivatives known as retinoids, which also includes retinal. The difference between retinol and retinal is that the latter converts more quickly to retinoic acid in your skin – more on that below. Our GHI Approved serums all contain either retinol or retinal.
To find the best, our panel of 358 beauty lovers tested 21 brands of retinoid serums for eight weeks. They gave feedback on how easy each product was to apply, whether they experienced any discomfort or irritation after use, and whether they saw any improvements to their skin.
Back in the Good Housekeeping Institute beauty lab, we used a VISIA Skin Analysis machine to assess any changes to fine lines and wrinkles, pores and skin texture once the trial period ended.
Florence is our Senior Beauty Writer, specialising in expert-tested beauty and grooming reviews — from toothbrushes to the latest skincare launches. She’s committed to sharing recommendations for products that truly work and make people feel confident and healthy. Prior to this she was at Tropic Skincare, where she worked closely with biochemists in the lab, delving into the functions of each fresh, natural ingredient and conveying its efficacy to her audience in easy-to-digest terms.
With over five years’ experience in beauty and health journalism, Florence has written for ELLE, Women’s Fitness, Sister Magazine, National Geographic Traveller and many more, with a strong sustainability angle thread through much of her work.
When she isn’t packing for a trip away, working out, eating out or reading up on retinol serums, you’ll probably find her experimenting with her film camera and building her portfolio of portraits. Florence’s photography can be found at florencereeves-white.com, her Instagram is @florencereeveswhite and her twitter is @floreadsnwrites
Orla was our Former Senior Beauty and Grooming Tester.


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