Question: what is the best thickening shampoo for thinning hair?
Answer: Revita Hair Stimulating Shampoo. ... 
Ultrax Labs Hair Surge Caffeine Hair Loss & Hair Growth Stimulating Shampoo. ... 
Nizoral Anti-Dandruff Shampoo With Ketoconazole. ... 
Giovanni Root 66 Max Volume Shampoo. ... 
Lipogaine Big 5 Shampoo. ... 
Alpecin Caffeine Shampoo. ... 
Lipogaine Big 3 Shampoo.