10 Best Thickening Shampoos 2025 in the UK

Pantene Biotin&Bamboo Shampoo is designed specifically for those with dry, damaged, and thin hair. One of its prime strengths is the combination of biotin and bamboo, which are well-known ingredients for strengthening hair and reducing breakage. This shampoo aims to reduce hair loss due to breakage and promises up to 100% stronger hair, thanks to its high concentration of Pro-V nutrients and protein strengtheners. Pantene's long-standing reputation and 75 years of research behind the formula can give users confidence in its effectiveness.

The product has received high marks from customers, with a 4.6 out of 5-star rating based on over 1,300 reviews, indicating general satisfaction with its performance. The shampoo also features a pleasant bamboo scent and comes in a large 1-liter pump bottle, making it a convenient and cost-effective option for long-term use.

While the volumizing and moisturizing benefits are significant for those with damaged hair, it might not be the best choice for individuals with oily or very fine hair as it may weigh down the hair. Users looking for a lighter formula might need to look elsewhere. Additionally, those sensitive to scents might find the bamboo fragrance a bit overwhelming. This shampoo is best suited for those with dry, damaged, and thin hair looking for a reliable product to strengthen and nourish their hair.

Grow Me® Hair Growth Shampoo by Watermans offers a well-rounded solution for individuals with thinning hair, featuring high-quality natural ingredients like Biotin, Argan Oil, Rosemary, Niacinamide, and Caffeine. These ingredients are known for promoting hair growth and enhancing scalp health, which is crucial for hair thickening treatments. The shampoo is suitable for both men and women and targets the root causes of hair thinning, making it versatile for various hair types.

Additionally, it is free of sulphates and parabens, making it a safer choice for sensitive scalps. The inclusion of Rosemary provides antioxidant and anti-inflammatory benefits, which can help reduce grey hair and improve scalp health, creating an ideal environment for hair growth. The mint scent adds a refreshing touch to the hair care routine.

However, users should be aware that for optimal results, the shampoo needs to be left on the scalp for a period to allow deep penetration of nutrients, which might require a change in usual washing habits. Watermans, the brand behind this product, has a strong reputation and has received endorsements from experts like trichologists and hair surgeons, further adding to the credibility of the shampoo. With over 13,000 customer reviews and a 4.2-star rating, it is evident that many users have found this shampoo effective and satisfying. While the shampoo may offer positive results, its effectiveness can vary from person to person, and it may not work equally for everyone.

The Pantene Biotin & Rose Water Hair Thickening Shampoo seems like a promising choice for those aiming to add volume to their hair, especially if it's on the finer side. One of its primary ingredients, biotin, is known for strengthening hair which could be beneficial for preventing damage caused by styling. Additionally, the rose water not only contributes to a pleasant scent but also potentially offers moisturizing benefits, which might help maintain hair health.

The shampoo is silicone-free, making it a suitable option for those avoiding silicones in their hair care routine. It's important to note that it has been tested by the Swiss Vitamin Institute, which could be reassuring for users looking for tested and reliable products. The large 1-litre bottle is practical, especially with its pump dispenser, ensuring ease of use and longevity.

On the downside, while the scent of rosewater is appealing to many, it might not suit everyone's preference as scents can be quite personal. The product is listed for normal hair types, so those with extremely dry or oily hair may need to consider how this might fit into their routine. If you're environmentally conscious, the use of recycled plastic for the bottle is a plus, although the pump and dyes aren't recyclable. This shampoo seems well-suited for adults looking to achieve fuller, thicker hair without heavy silicones, provided the scent is to your liking and your hair type aligns with the product's formulation.