This shampoo transformed my thin, colored hair - thicker, shinier, and washable daily without harshness!
Photo proof shows regrown thinning spots and thicker hair overall. Safe for color-treated hair, eliminates static and breakage when paired with iron supplements. No harsh sulfates despite low lather.
This is a review from Amazon.com about product:
Hair Growth Shampoo and Conditioner for Men and Women - Dry Scalp Treatment, Moisturizing Shampo and Conditioner - Fragrance-Free Shampoo - Volumizing Hair (8oz)

Absolute best shampoo and conditioner for fine, thin and colored hair! I tracked my progress via pictures from the time I started to use this product seven months ago until today. The first picture showed where I had a very noticeable thinning area and where my scale was very noticeable. Today's picture shows where that thinning area is now full of hair and where my whole head of hair is thicker. Before I could only shampoo my hair every three days, because all shampoos were to harsh for my hair. With this brand I am able to shampoo everyday, and my hair is shinny, soft, tangle free and static free. Note: I had to learn from experience that for best results, use the shampoo and conditioner together daily, and be certain to thoroughly wash out the conditioned. As others have noted, the shampoo does not lather like other shampoos; however, it will still get your hair clean and soft. It is definitely safe for colored hair, and I am confident I have kept my color much longer than when using other color safe shampoos. For full disclosure, the only other change I have made since using this product is to add more iron to my diet, which I am confident helped me to stop breaking my hair. However, I am also very confident that this shampoo and conditioner helped me to grow hair in areas where it was not ever going to grow back, and it also helped repair the damage caused from the breakage. Love it, love it, love it. Please never stop making these products!!!
Shampoo Basics & Tips
Understanding Hair Care for Fine, Colored Hair
Color-Safe Formulas: Sulfate-free shampoos prevent dye stripping by avoiding harsh detergents. This preserves vibrancy 2-3x longer than regular shampoos while maintaining cuticle integrity.
Low-Lather Cleansing
Rich lather often indicates sulfates that strip natural oils. Non-foaming formulas use mild surfactants like decyl glucoside that clean without damaging fragile or chemically-treated hair.
Conditioner Rinse Importance
Residue from insufficient rinsing causes buildup, dullness, and breakage. Always rinse for 90+ seconds with cool water to seal cuticles while removing product traces.
Iron & Hair Growth
Iron deficiency (common in women) reduces hemoglobin's oxygen transport to follicles. Supplementing 18mg/day supports keratin production and minimizes breakage during growth phases.
Progress Documentation
Monthly photos under consistent lighting reveal subtle changes in density and scalp coverage. Measure growth at crown/hairline where thinning typically starts.
I enjoy this shampoo's floral fragrance and ideal consistency for my 4b/4c hair.
I love how this shampoo's floral scent and light texture work perfectly on my 4b/4c hair, making it soft and clean.
Using tea tree shampoo makes my scalp feel refreshed and hair clean.
My tea tree shampoo experience leaves my hair clean and scalp refreshed. It's not as intense as Paul Mitchell but works well for gentle, effective care in my routine.
I revived my dry, brittle hair with this shampoo, restoring strength and thickness fast.
This shampoo transformed my damaged hair by restoring strength and thickness quickly, and I saw visible results from the very first wash, all while being affordable and better than salon products.
I love how this shampoo makes my hair longer, fuller, and promotes new growth.
This shampoo has made my hair longer and fuller, with baby hairs growing on my scalp. I appreciate the affordable cost and plan to reorder without buying full kits.
After 15 months, I have full hair thanks to Zenagen Revolve shampoo.
I used Zenagen Revolve Shampoo for 15 months; my thinning hair became full and thick. It lasts 7 months with alternate day washes, and I've repurchased it thrice, highly satisfied.
I experienced the healthiest hair ever with longer-lasting dye and fewer washes.
After using this product, my hair never been healthier, hair dye lasted much longer, I washed less often, though expensive.
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