Overview
Thinning hair refers to minor to moderate hair loss. Unlike widespread hair loss, thinning hair doesn’t necessarily cause baldness. It does, however, give the appearance of thinner spots of hair on your head.

Treatments and home remedies
Most cases of thinning hair are treatable at home. Consider the following 7 options.

1. Scalp massage
2. Essential oils
Essential oils are liquids derived from certain plants, and they’re primarily used in aromatherapy and other types of alternative medicine.
3. Hair thinning shampoo
Hair thinning shampoo works in two ways. First, such products provide volume for your hair, so it looks thicker. This can be helpful for people who have thinning or naturally fine hair.
Shampoos for thinning hair or hair loss also contain vitamins and amino acids that promise a healthier scalp to generate more hair over time. To get the best results, use products every day. You can also ask your healthcare provider about a prescription-strength version of the shampoo.
4. Multivitamins
5. Folic acid supplements
Folic acid is a type of B vitamin that’s important for new cell generation. In terms of thinning hair, folic acid is thought to help follicles generate new hair in balding areas. Still, as with multivitamins, there isn’t enough evidence that folic acid is guaranteed to help make your hair thicker.
6. Biotin
Biotin, or vitamin B-7, is a water-soluble nutrient that’s naturally found in foods such as nuts, lentils, and liver. If you eat a balanced diet, it’s unlikely that you’re low in biotin. 
7. Omega-3 and omega-6 fatty acids
Omega-3 and omega-6 fatty acids are called essential fatty acids. This is because they can’t be made by the human body. Omega-3 helps your body fight inflammation, an underlying cause of numerous conditions. Premature hair loss may also be related to inflammation. Omega-6, on the other hand, is important for overall skin health, which might benefit the scalp.