Hair Gain

Support Healthier, Fuller Hair with Hair Gain

Hair Gain’s vegan haircare range is expertly formulated to support scalp health, reduce hair fall and encourage visibly fuller, thicker hair. From targeted scalp foams to innovative peptide-powered dry shampoos, each product works to nourish follicles and boost confidence from root to tip.

FREE Hair Mask 50ml (Worth £14.49) when you spend £20 on Hair Gain!

While Stocks Last

Quick filters

Filter 13 products
Four Hairgain hair care refill bottles in a set of shampoo, conditioner, and two hydrating conditioners, arranged on a clean white background.Hair Gain Shampoo & Conditioner Starter Kit
Hair Gain Shampoo & Conditioner Starter Kit

$46.00 $54.00 15% offsaving
Pink tube of HairGain hair mask on a white backgroundHair Gain Hair Mask 180ml
Hair Gain Hair Mask 180ml

$36.00 $44.00 18% offsaving
Pink bottle of HairGain scalp foam on a white backgroundHair Gain Scalp Foam 50ml
Hair Gain Scalp Foam 50ml

$33.00 $44.00 25% offsaving
Hair Gain Peptide Puff Dry Shampoo 5gHair Gain Peptide Puff Dry Shampoo 5g
Hair Gain Peptide Puff Dry Shampoo 5g

$13.00 $21.00 38% offsaving
Pink tube of HairGain hair mask on a white backgroundHair Gain Hair Mask 50ml
Hair Gain Hair Mask 50ml

$14.00 $20.00 30% offsaving
Pink bottle of Hair Gain Hydrating Shampoo on a white backgroundHair Gain Hydrating Shampoo 70ml Mini
Hair Gain Hydrating Shampoo 70ml Mini

$9.00 $12.00 25% offsaving

Subscribe & Save

Save Up To 20% By Subscribing To Your Self-Care Faves

Discover More
Hair Gain Hydrating Conditioner 250ml RefillHair Gain Hydrating Conditioner 250ml Refill
Hair Gain Hydrating Conditioner 250ml Refill

$16.00 $20.00 20% offsaving
A pink bottle of Hairgain Hydrating Shampoo refill with a white pump dispenser, shown on a clean white background.Hair Gain Hydrating Shampoo 250ml Starter Kit
Hair Gain Hydrating Shampoo 250ml Starter Kit

$23.00 $27.00 15% offsaving
Hair Gain Hydrating Conditioner 250ml Starter KitHair Gain Hydrating Conditioner 250ml Starter Kit
Hair Gain Hydrating Conditioner 250ml Starter Kit

$23.00 $27.00 15% offsaving
Sold out
Two light pink Hairgain haircare bottles on a white background: Hydrating Shampoo and Hydrating Conditioner, both labeled REFILL and 250ml.Hair Gain Shampoo & Conditioner Refill Duo
Hair Gain Shampoo & Conditioner Refill Duo

$34.00 $40.00 15% offsaving
Sold out
Pink bottle of Hair Gain Hydrating Shampoo refill on a white backgroundHair Gain Hydrating Shampoo 250ml Refill
Hair Gain Hydrating Shampoo 250ml Refill

$17.00 $20.00 15% offsaving
Sold out
Hair Gain Hydrating Conditioner 70ml MiniHair Gain Hydrating Conditioner 70ml Mini
Hair Gain Hydrating Conditioner 70ml Mini

$10.00 $12.00 17% offsaving
Sold out
Two light pink bottles of Hairgain haircare products on a white background: Hydrating Shampoo and Hydrating Conditioner, 70ml each.Hair Gain Shampoo & Conditioner Travel Duo
Hair Gain Shampoo & Conditioner Travel Duo

$20.00 $24.00 17% offsaving
Hair Gain

About Hair Gain

Discover the Hair Gain Routine for Fuller Hair

Hair Gain’s collection is designed to help reduce hair fall, support scalp health and promote visibly thicker, fuller hair. Whether you're looking to refresh between washes or nourish the scalp daily, these expertly formulated products fit easily into your routine and deliver noticeable results.

Find the Right Hair Gain Product for Your Needs

From the peptide-rich dry shampoo to the soothing scalp foam and biotin-infused hair mask, Hair Gain offers targeted care for thinning hair. Vegan, dermatologist-approved and powered by natural actives, each product is developed to improve volume, reduce breakage and restore hair confidence.

Need Advice on Your Hair Gain Routine?

Our haircare experts are here to help. Get personalised recommendations from our skincare experts, explore our blogs for tips on building a hair-strengthening routine or take our free online quiz to discover the best Hair Gain products for your scalp and strands.

Support Healthy Hair Growth from Within with Hair Gain Supplements

Hair Gain supplements are expertly formulated to target the root causes of hair thinning, helping to reduce shedding and promote visibly fuller, stronger hair. Powered by AnaGain™ derived from organic pea shoots and enriched with biotin, zinc and selenium, this award-winning complex supports the hair growth cycle from within. Ideal for those experiencing postpartum hair loss, hormonal changes or general thinning, Hair Gain offers a science-backed, vegan solution for healthier hair and scalp support.

shop hair gain supplements

Nourish and Strengthen with the Hair Gain Hair Mask

The Hair Gain Hair Mask is designed to deeply condition and revitalise weak, thinning hair while supporting a healthy scalp environment. Enriched with the brand’s signature AnaGain™ complex, biotin, and panthenol, this nutrient-rich formula helps reduce breakage, improve shine and support stronger, fuller-looking hair over time. Perfect for those looking to restore volume, smoothness and hydration to hair that feels dry, fragile or prone to shedding.

shop hair gain hair masks

Expert Tip for Hair Gain

"Achieving fuller hair doesn’t need to be complicated. Start by applying the Hair Gain scalp foam daily to clean, dry roots to support follicle health. On days you skip washing, refresh with the Peptide Puff dry shampoo, which helps absorb oil while caring for the scalp. Add the Hair Mask once a week to deeply nourish and strengthen strands. With regular use, you’ll help improve hair texture, reduce shedding and support long-term growth."

- Kimberley, Clinic & Customer Experience Manager

take the free skin test

The Best Hair Gain Products for Stronger, Thicker Hair

Explore Hair Gain’s bestsellers, including the peptide-powered dry shampoo, biotin-enriched hair mask and soothing scalp foam, all designed to refresh, volumise and strengthen hair with every use.
Pink tube of HairGain hair mask on a white backgroundHair Gain Hair Mask 180ml
Hair Gain Hair Mask 180ml

$36.00 $44.00 18% offsaving
Pink tube of HairGain hair mask on a white backgroundHair Gain Hair Mask 50ml
Hair Gain Hair Mask 50ml

$14.00 $20.00 30% offsaving
Hair Gain Peptide Puff Dry Shampoo 5gHair Gain Peptide Puff Dry Shampoo 5g
Hair Gain Peptide Puff Dry Shampoo 5g

$13.00 $21.00 38% offsaving
Pink bottle of HairGain scalp foam on a white backgroundHair Gain Scalp Foam 50ml
Hair Gain Scalp Foam 50ml

$33.00 $44.00 25% offsaving

Frequently Asked Questions

What makes Hair Gain products different from regular haircare?

Hair Gain products are developed with ingredients like AnaGain™, biotin, and caffeine to help reduce hair shedding and support the scalp environment, promoting stronger, fuller hair.

Is Hair Gain suitable for thinning hair or hair loss?

Yes. The range is formulated to target early signs of hair loss and thinning. Many users report less shedding and improved hair density over time.

Can I use the scalp foam and dry shampoo together?

Absolutely. The scalp foam supports root health while the dry shampoo refreshes the scalp and adds volume between washes, making them perfect for daily or alternating use.

How often should I use Hair Gain products?

Daily use of the scalp foam is recommended, while the hair mask can be used once or twice a week. The dry shampoo can be used as needed to absorb oil and refresh the scalp.

Are Hair Gain products safe for sensitive scalps?

Yes. The formulations are vegan, silicone-free and dermatologist-tested, making them suitable for sensitive or reactive scalps.

Do Hair Gain products work for all hair types?

Hair Gain is suitable for all hair types and textures. Whether you have fine, curly, coloured or coily hair, the formulas are designed to be gentle and effective.

Can I use Hair Gain while pregnant or breastfeeding?

As with all products, it’s best to check with your healthcare provider. Hair Gain’s topical products are generally safe but confirm with a professional if you’re unsure.

Is the Hair Gain dry shampoo suitable for oily scalps?

Yes. It’s designed to absorb excess oil while helping to support scalp health with added peptides and natural actives.

Will Hair Gain products weigh my hair down?

No. The lightweight foam and non-chalky dry shampoo are designed to add lift and refresh the scalp without leaving residue or buildup.

Are the products cruelty-free and vegan?

Yes. Hair Gain products are proudly vegan, cruelty-free and made without animal-derived ingredients or harsh additives.