Cat Deeley's French serum boosts hair density and scalp health, with a luxe scent to match
For stronger, fuller-looking strands, this is the luxe hair serum Cat Deeley uses - along with some cheaper alternatives.
Searching for a hair serum that will not only soothe scalp irritation and stimulate growth, but also impart a chic scent? Cat Deeley has just the buy for you.
Taking to Instagram to share a carousel of 'some recent shenanigans,' the This Morning presenter gave us a glimpse into her haircare routine, with Sisley Paris' Revitalising Fortifying Super Serum making an appearance alongside her Celine handbag (another French essential).
The treatment is specifically formulated to stimulate new growth, whilst also soothing scalp irritation. An ideal buy if you're looking to kickstart your autumn/winter hair repair journey and achieve fuller-looking strands.
RRP: £200
Brimming with active and nourishing ingredients like rice proteins, ginger extracts, tetrapeptide and vitamin B12, this serum is formulated to soothe irritated scalps and stimulate new hair growth, as well as slow the appearance of grey hairs. It also boasts a lovely fresh and invigorating scent, with notes of mimosa and pepper clinging to your strands.
The serum, which you can see on slide two alongside Sisley's Hydra Flash face mask, is touted as both an anti-hair loss treatment and a density and 'growth booster for existing hair '. As for the formula itself, it features ingredients like ginger extract and vitamin B12 to nourish, stimulate and fortify your hair and scalp, with the brand stating that thickening results can be seen after a month of use. It also douses your hair in invigorating, floral notes of mimosa absolute and pepper.
Alas, this serum is very much a premium buy, costing £200 for 60 ml, but there are other more affordable options out there. Plus, if you're looking to tailor your haircare around a specific concern, there are again plenty of options, from the best hair masks to tackle dryness to the best fine hair shampoos to achieve a fuller, bouncier look and feel.
For another fortifying option that supports weakened hair, this Kérastase oil is a very popular buy. It is enriched with ingredients like edelweiss native cells, ginger root, caffeine, and aminexil, which work to hydrate your strands and help minimise the risk of breakage.
For scalp and hair density support, The Ordinary's peptide serum combines plant extracts and caffeine to nourish your scalp and promote thicker, healthier-looking strands.
Infused with pea sprout and amaranth peptides, this leave-in treatment is designed for thinning hair and seeks to nourish the scalp to promote optimal conditions for growth and to reduce the visible fall-out rate of strands.
Naturally, when it comes to achieving similarly shiny and healthy-looking strands as Deeley's, we're always keeping an eye out for her go-to products and recommendations. Thankfully, she does treat us to quite a few on Instagram. We've previously spotted that she uses Attitude's under-£10 Nourishing Hair shampoo, and L'Oreal's shine-boosting Glycolic Gloss Leave-In Serum.
And that's just the haircare buys; we've also seen beauty buys like Laneige's Glaze Craze Tinted Lip Serums among her posts and Charlotte Tilbury's Lip Lustre glosses - which she wore on the 2026 Pride of Britain Awards red carpet.
