We Compared 10 Pumpkin Seed Hair Serums for Thinning Hair. Here’s the Truth.

The closest formula on this list. Developed by dermatologist Dr Aamna Adel, it lists pumpkin seed oil first, alongside black seed oil, saw palmetto, beta-sitosterol and ceramides. The catch is how you use it: it’s a pre-wash oil you rinse out, two to three times a week, so it only sits on your scalp for a short while. It also contains phenyl trimethicone, which is a silicone, plus fragrance. Its claims come from a 4-week consumer study of 34 women. It’s £35 from a UK brand, and it’s currently sold out with a waitlist.

The luxury pick, with a Good Housekeeping best-serum award to its name. It’s a nightly leave-in that pairs pumpkin seed extract with vitamin A and lactic acid, it’s silicone-free, and it’s sold as pregnancy-safe. But water leads the label, pumpkin sits 10th, and it’s an extract rather than the oil. At $113 list price ($96.05 on the US site today, £83 in the UK) for 50 ml, it’s the most expensive bottle on this list.

The purist’s choice: nothing but organic, cold-pressed pumpkin seed oil. It’s unscented, preservative-free and affordable at $17.95 for 2 oz ($14.95 for 1 oz). But a single oil is only half the formula. There’s nothing alongside it to support the growth phase, it’s sold to men and women alike, and the directions say to use it two to four times a week rather than every night.

A salon-brand favourite stocked at Sephora and Ulta, built around biotin and peptides. IGK cites a clinician-measured 37% reduction in the look of sparseness at 12 weeks, which is more evidence than most. But the label starts with water, then denatured alcohol, which can dry out the scalp. Pumpkin seed oil sits seventh, and there’s added fragrance. It’s $45 (currently $38.25) for 2.1 oz.

Good value with a recognisable active: 5% Capixyl, with caffeine and biotin, and it’s silicone-free. Rosemary, castor and pumpkin seed oil play supporting roles, and water is the first ingredient. At $19.99 for 3 fl oz ($13.99 at Ulta right now) it’s easy to try, but pumpkin seed oil isn’t what this formula is built on.

A new mass-market brand from IBG, launched in March 2026 in more than 700 Walmart stores and sold on pumpkin seed extract, caffeine and rosemary. Turn the bottle around and the story changes: water is first, caffeine is sixth, and pumpkin seed extract is 26th of 27 ingredients, with fragrance and peppermint oil also in the mix. For $15.99 you get 1.69 fl oz.

Popular and affordable: $14.99 for a big 6.7 fl oz bottle, with more than 1,100 ratings at Walmart. It’s a rosemary and pumpkin seed oil blend for men and women, silicone-free, and pitched as a pre-wash, an overnight mask or a leave-in. It’s a general hair oil rather than a formula for women’s thinning, and the Amazon listing also includes castor oil, so check which version you’re buying.

Batana is the lead oil here, with pumpkin seed oil, bhringraj, jojoba, castor, vitamin E and rosemary alongside it. It’s sold to men and women, and the copy centres on receding hairlines and bald spots, which isn’t how thinning usually shows up for women. It’s applied nightly with a derma roller upsell, it’s shown at $35.95 as 50% off $71.95, and the page lists key ingredients but no full ingredient list.

Batana blended with rosemary, castor and pumpkin seed oil in a 5 oz bottle, $19.99 at Walmart and also sold on TikTok Shop. It’s a multi-purpose oil rather than a targeted formula: batana leads, and pumpkin seed oil is one of four oils in the blend.