Control GX + THK Thickening Shampoo and Conditioner with Grey Reduction, Shampoo for Thinning Hair with Alpha Keratin, Thickens Hair Up to 20%, Works with Every Hair Texture, 4 oz

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Turns white hair into age-appropriate salt-and-pepper hair. Very happy with outcome. Far better than Gradual Grey. But does stain nails. Use palms or wear nitrile gloves.

This shampoo darkened my hair after three or four uses. Once my hair is dark enough, I use this shampoo once a week just to maintain the color. I switched from the regular Control GX to this version and I like this version better. My hair looks a little thicker since I started using it. It costs a little more but it's worth it. It's very easy to use and doesn't make a mess. Definitely recommended.

I think my hair is actually getting thicker. Amazing.

I've been using Just for Men Control GX + THK Thickening Shampoo and Conditioner for a few weeks now, and I’m genuinely impressed. Not only has it noticeably thickened my hair (it feels fuller and looks healthier), but the gradual grey reduction is incredibly natural. No harsh color changes — just a subtle darkening over time that blends in perfectly. The added Alpha Keratin really seems to strengthen my strands, and it doesn’t leave any residue or weird texture. I have slightly thinning hair and was skeptical at first, but after consistent use, my hair looks and feels at least 20% thicker, just as it claims. It’s easy to use, works with my hair type, and doesn’t require any extra steps. If you're looking for a simple, effective way to reduce greys and boost volume, this is definitely worth a try!