A mane lacking thickness and volume can make hair styling a struggle: fine strands can lead to limp volume, less hold and tresses that appears greasy too quickly. However, a quality thickening shampoo and conditioner can make a world of difference, enhancing each strand to create the illusion of a fuller, more voluminous head of hair.

John Frieda is a big name in the hair industry, helping shoppers get dreamy locks, and Amazon is offering a 20% discount on a duo set by the brand, John Frieda's ProFiller+ Thickening Shampoo and Conditioner, reducing the pair from £24.99 to £20. While it's a small saving of £4.99, it is still appreciated by those who swear by this 'game-changing' hair duo.

The products together claim to give flat, fine hair that's a little lifeless a substantial boost, delivering up to 200% thicker and fuller-looking hair while also minimising breakage-related hair loss.

The formula of the shampoo and conditioner has been crafted to help fortify strands from within, which'll make hair appear healthier and feel stronger.

For those wanting to go all out and complete the set, the brand also offers a ProFiller+ Thickening Spray, which helps protect hair from heat styling while adding volume. It's currently priced at £5.55, which would bring the total price to just above the original price of the shampoo and conditioner duo alone, without the discount.

Of course, John Frieda isn't the only haircare brand beloved for aiding thinning hair. Philip Kingsley's Density Hair Thickening Shampoo (£30) has had the seal of approval from hundreds of hair-care fans, with people praising its ability to thicken hair. Alternatively, for a more cost-effective option, Noughty's Get Set Grow Shampoo is £4.50 but still manages to give a solid volume boost, reports OK!.

With a 4.3 star rating from over 200 reviews on Amazon alone, shoppers have been keen to share their results of using the shampoo and conditioner, singing its praises as one previously struggling reviewer shared: "I used this shampoo and conditioner yesterday, and I immediately noticed a difference. My hair is definitely thicker."

They added: "Even after one use, my hair looks really good. After drying and styling, it's soft, shiny, and has a lot more volume. The bottles are large, too, so they should last ages."

Someone else wrote: "My hair had started thinning, and I used several different products before trying this shampoo and conditioner. I'd nearly given up, but I'm so glad I didn't, as it has made such a difference. My hair looks and feels so much fuller now-much more body and shine."

However, not all feedback was quite as glowing; one customer reported a less than ideal reaction to the formula and said: "I've used John Frieda products before without a problem, but unfortunately, this duo has caused scalp stinging and itching. I used it a couple of times and stopped, and the problem has cleared up. I can't recommend the duo for this reason, unfortunately."

However, it seems for the most part customers have loved the shampoo set for tackling thinning issues, as one shopper remarked: "This thickening shampoo and conditioner is the best. I am of an age now where my hair is thinning out, but after I've washed and conditioned it with these products, it looks much fuller and shinier."

The John Frieda ProFiller+ Thickening Shampoo and Conditioner 500ml Duo Pack is currently on sale at Amazon for £20.