Your questions about anti-ageing serums answeredWhat is the best anti-ageing serum?I’m picking the iconic Clarins double serum as the best buy overall, as it’s always been a first-class anti-ageing serum, but the latest formula is better than ever with even more skin actives that have made my skin noticeably smoother and glowing. If you have a smaller budget, the Anua niacinamide 10 TXA 4 serum is packed with anti-ageing powerhouse niacinamide and works great for those looking to brighten dark spots and pigmentation. What to look for in an anti-ageing serumRetinol is widely considered by dermatologists as the best anti-ageing ingredient, and can often be found in serums, as it tackles fine lines and wrinkles. As it can cause irritation if used incorrectly, it’s important to introduce it gradually into your skincare routine, applying only in the evening two to three times a week.Additionally, hyaluronic acid is a popular ingredient, thanks to its plumping effect. One molecule can hold 1,000 times its weight in water and it helps to attract and retain moisture for the skin.Antioxidants also have multiple benefits, from protecting against free radicals to preventing environmental damage. Vitamin C is one of the most common, but niacinamide, vitamin E, ferulic acid and green tea are also hardworking ingredients that can improve the appearance of skin.I’m an experienced beauty editor in my 40s, and I’ve tested hundreds of serums over the years. I have all the common signs of ageing, including fine lines, a deep forehead wrinkle, dark spots and skin on the dry, dull side. I’m therefore never without a serum in my morning and evening skincare arsenal. For this piece, each product featured has been trialled for a minimum of four weeks. However, many have been used until empty or on repeat, taking into consideration the following…Ease of use: How well the product fitted into my skincare routine and layered with other products was a consideration during testing.Benefits: I investigated each product's ingredients and promises and assessed each on how well it lived up to its marketing claims.Texture: I noted how each formula felt on application in terms of slip, weight and how quickly it absorbed into my skin.Value for money: Each product's results were evaluated against the product’s cost, so I could weigh up whether they were worth the investment.Why you can trust IndyBest reviewsSabine Wiesel is a beauty journalist with years of experience trialling and recommending skincare to IndyBest readers. As a woman in her 40s, she has reviewed plenty of neck creams, retinol eye creams and similar products formulated to address the signs of ageing, such as fine lines, dullness and dark spots. With this in mind, she knows which actives to look for, and has a wealth of relevant testing experience.Give your skin an extra boost, with one of these foundations for mature skin