
Support the appearance of thicker, fuller-looking hair with ThickTails Hair Growth Serum for Women—a lightweight, leave-in scalp serum designed for women noticing changes in volume, density or root strength. Blending caffeine, biotin and peptides, this targeted formula helps improve the look of density at the roots and supports smoother, more resilient-feeling strands in areas such as the temples, crown and part line. The serum combines niacinamide, hyaluronic acid and glycerin to hydrate and balance the scalp, creating a comfortable base for healthy-looking hair. Botanical extracts including red clover, saw palmetto and Acetyl Tetrapeptide-3 help support hair and scalp vitality, while caffeine and peppermint oil provide a refreshing sensation that invigorates without irritation. The non-greasy, fast-drying texture absorbs quickly with no residue, making it ideal for daily use beneath styling products or alongside your existing routine. Vegan, cruelty-free and made with a high percentage of naturally derived ingredients, the formula contains no parabens, silicones or drying alcohols. Choose ThickTails Hair Growth Serum for a clean, scalp-friendly, salon-inspired step that complements your haircare routine and supports the appearance of fuller, stronger-looking hair through every stage of your journey. 1. SUPPORTS FULLER-LOOKING HAIR – Lightweight leave-in serum with caffeine, biotin and peptides to support thicker-looking, fuller-looking hair at the roots for women noticing reduced volume. 2. TARGETED SCALP ROUTINE – Apply to areas where hair appears thinner. Helps maintain a healthier-feeling scalp for smoother, stronger-looking roots through daily use. 3. NOURISHING FORMULA – Includes niacinamide, hyaluronic acid, red clover and saw palmetto extracts to hydrate and nourish scalp and strands, supporting hair vitality for women at any life stage. 4. LIGHTWEIGHT & NON-GREASY – Fast-absorbing, leave-in serum dries quickly with no residue. Ideal for daily use under your styling routine, even on fine or thinning hair. 5. BOTANICAL & SCIENCE-INSPIRED – Features Acetyl Tetrapeptide-3, peppermint oil and caffeine for a refreshing feel and enhanced scalp comfort. Vegan, cruelty-free and naturally minded.
VISIBLE RESULTS OVER TIME – With regular use, users may notice visibly stronger, thicker-feeling hair and improved scalp vitality.
Free delivery on all order over £75 (exc. Bulky Item Delivery)
Super Saver Delivery
£2.99
Standard Delivery
£3.99
Express Delivery
£5.99
Next Day Delivery
£6.99
24/7 InPost Locker | Shop Collect
£2.49
Evri ParcelShop
£3.99
Evri ParcelShop | Express Delivery
£5.99
Premium DPD Next Day Delivery
£7.99
Bulky Item Delivery
£4.99
Northern Ireland Super Saver Delivery
£2.99
Northern Ireland Standard Delivery
£4.99
Unlimited free delivery for a year with Unlimited Delivery for £14.99
Please note, some delivery methods are not available for products delivered by our brand partners & they may have longer delivery times.
Something not quite right? You have 21 days from the day you receive it, to send something back.
Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.
Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.
Click here to view our full Returns Policy.

Support the appearance of thicker, fuller-looking hair with ThickTails Hair Growth Serum for Women—a lightweight, leave-in scalp serum designed for women noticing changes in volume, density or root strength. Blending caffeine, biotin and peptides, this targeted formula helps improve the look of density at the roots and supports smoother, more resilient-feeling strands in areas such as the temples, crown and part line. The serum combines niacinamide, hyaluronic acid and glycerin to hydrate and balance the scalp, creating a comfortable base for healthy-looking hair. Botanical extracts including red clover, saw palmetto and Acetyl Tetrapeptide-3 help support hair and scalp vitality, while caffeine and peppermint oil provide a refreshing sensation that invigorates without irritation. The non-greasy, fast-drying texture absorbs quickly with no residue, making it ideal for daily use beneath styling products or alongside your existing routine. Vegan, cruelty-free and made with a high percentage of naturally derived ingredients, the formula contains no parabens, silicones or drying alcohols. Choose ThickTails Hair Growth Serum for a clean, scalp-friendly, salon-inspired step that complements your haircare routine and supports the appearance of fuller, stronger-looking hair through every stage of your journey. 1. SUPPORTS FULLER-LOOKING HAIR – Lightweight leave-in serum with caffeine, biotin and peptides to support thicker-looking, fuller-looking hair at the roots for women noticing reduced volume. 2. TARGETED SCALP ROUTINE – Apply to areas where hair appears thinner. Helps maintain a healthier-feeling scalp for smoother, stronger-looking roots through daily use. 3. NOURISHING FORMULA – Includes niacinamide, hyaluronic acid, red clover and saw palmetto extracts to hydrate and nourish scalp and strands, supporting hair vitality for women at any life stage. 4. LIGHTWEIGHT & NON-GREASY – Fast-absorbing, leave-in serum dries quickly with no residue. Ideal for daily use under your styling routine, even on fine or thinning hair. 5. BOTANICAL & SCIENCE-INSPIRED – Features Acetyl Tetrapeptide-3, peppermint oil and caffeine for a refreshing feel and enhanced scalp comfort. Vegan, cruelty-free and naturally minded.
VISIBLE RESULTS OVER TIME – With regular use, users may notice visibly stronger, thicker-feeling hair and improved scalp vitality.
Free delivery on all order over £75 (exc. Bulky Item Delivery)
Super Saver Delivery
£2.99
Standard Delivery
£3.99
Express Delivery
£5.99
Next Day Delivery
£6.99
24/7 InPost Locker | Shop Collect
£2.49
Evri ParcelShop
£3.99
Evri ParcelShop | Express Delivery
£5.99
Premium DPD Next Day Delivery
£7.99
Bulky Item Delivery
£4.99
Northern Ireland Super Saver Delivery
£2.99
Northern Ireland Standard Delivery
£4.99
Unlimited free delivery for a year with Unlimited Delivery for £14.99
Please note, some delivery methods are not available for products delivered by our brand partners & they may have longer delivery times.
Something not quite right? You have 21 days from the day you receive it, to send something back.
Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.
Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.
Click here to view our full Returns Policy.
Extend your warranty and protect your purchase against accidental damage and defects.
Protects your new ThickTails Root Stimulating Leave-In Serum | 100ml against breakdowns and faults once the manufacturer's warranty period is over.
Covers issues not included in your manufacturer's warranty, such as accidental damage or theft.
Get a replacement or a cash refund up to the full amount you originally paid for it.
FAQs
XCover is an authorised protection provider for Debenhams, with over 7 million customers globally and an average 4.7 out of 5 stars from thousands of reviews on Google and Trustpilot. XCover's simple, fast and stress-free repair and replacement process delivers peace of mind if your item is stolen or it has damages or defects that aren't covered by the manufacturer's warranty.
XCover's simple, fast and stress-free repair and replacement process delivers peace of mind if your item is stolen or has damages or defects that aren't covered by the manufacturer's warranty. XCover’s easy, digital process is simple with quick payouts on approved claims.
Before submitting a claim, you need to gather all the details and documents to support your claim. This helpful article has a guide to what documents you may need based on your claim reason.
When you're ready to submit your claim, log in to your XCover Account, select the XCover Protection you would like to claim for and then select ‘Make a Claim’.
The XCover claims process is quick and hassle-free, with payment or reimbursement for approved claims processed instantly. The dedicated team at XCover aims to complete 95% of claims within 3 days of claim submission, so keep a close eye on your emails to ensure there’s no delay.
For more information about claims submission, please check XCover Help.