Thin hair is the growing issue nowadays and there are a lot of reasons behind this problem. The causes behind thin hair include excessive use of chemicals on the hair, several hairstyles, hereditary factors, aging and deficiency of some nutrients. Our hair follicle also grows old as we age. As we know estrogen contributes an important part in the stimulation of the hair follicle, but due to aging, estrogen production deteriorates and hence, results in thin hair or hair loss. You can use different shampoos for increasing the thickness of your hair. The best shampoos for thinning hair are as follows:

St. Botanica Biotin & Collagen Volumizing Shampoo
The natural ingredients present in this shampoo make it one of the best shampoos for thinning hair. The components blend in this shampoo are sunflower seed oil, oat extract, lavender oil, rosemary oil, jojoba oil, and other extracts of natural products. The presence of biotin and collagen, makes your hair look shiny and thick. This shampoo is suitable for any type of hair. It helps in reduction of split ends and therefore, improves your hair condition.

PURA D’OR Anti-Hair Loss Gold Label Shampoo
This shampoo is the best option for hair thinning caused by the breakage.

Schwarzkopf Bonacure Volume Boost Shampoo
This shampoo has a bouncer technology, which, cleanses and increases the volume of the hair and make it look dense. It is helpful in enhancing the growth of the hair and increasing the strength of the hair with the use of its amino cell rebuild technology. The presence of bamboo leaf compounds makes the hair look fuller, thicker and healthier as it supports the strength of the hair and makes them grow faster. This is the mild shampoo which shows results instantly and makes your hair softer.

Bumble and Bumble Thickening Shampoo
This shampoo comes with a super lightweight blend which is used for the thickening of the hair. It has components like panthenol, aloe vera juice, and glycerin. This product is utilized to make hair softer and healthier. This shampoo is comparatively cheaper than other products.

There are several other products also found in the market which are helpful in the thickening of the hair.