This shampoo gave me shiny, smooth hair without irritating my sensitive scalp.
This shampoo made my hair shiny and smooth without causing back itch, but the medicinal smell and lack of thickening left me disappointed.
This is a review from Amazon.com about product:
Nioxin Scalp + Hair Thickening System 3 | For Colored or Damaged Hair with Light Thinning | With Niacinamide and Biotin | Trial Size | 1 Month Supply

This shampoo and conditioner leaves my hair very shiny and smooth, and (of major importance) doesn't make my back itch. But it smells like an old-fashioned hospital, and I think the thickening comes from that third little bottle, and it made where I sprayed it feel rough, and, to me, unpleasant. If anything, my hair may be thinner than before.
I won't be buying it again.
Shampoo Basics & Tips
Understanding Shiny and Smooth Hair
Shiny, smooth hair often results from formulas containing silicones (e.g., dimethicone) or natural oils. These ingredients coat the hair cuticle, reflecting light and reducing frizz. However, buildup can occur, requiring occasional clarifying washes.
Preventing Scalp Irritation
The absence of back itch suggests a sulfate-free or hypoallergenic formula. Sulfates (SLS/SLES) strip natural oils, causing dryness and itching. Alternatives like coco-glucoside gently cleanse without irritation.
Clinical Scent in Hair Products
A "hospital-like" smell may stem from preservatives like phenoxyethanol or minimal fragrance additives. Brands targeting sensitive skin often avoid synthetic perfumes, which can trigger allergies.
Thickening Claims vs. Reality
Some shampoos use proteins (e.g., keratin) or volumizing agents (e.g., panthenol) to thicken hair. However, improper use or harsh ingredients (e.g., alcohol) can dry strands, leading to breakage and thinner-appearing hair over time.
Post-Use Texture Issues
A "rough" feeling after application might indicate product residue or incompatible ingredients (e.g., certain polymers). Always rinse thoroughly and avoid mixing silicone-based products with water-insoluble formulas.
After using this shampoo, my hair felt great but fine hair became limp until I reduced conditioner.
This shampoo initially gave my hair a wonderful feel, but for fine hair, it caused limpness until I used less conditioner and alternated washes to prevent product buildup effectively.
Despite itching and dry hair from Kerastase, I think it's a top-notch product.
I had an allergic reaction with itchy skin and splotches, and my hair felt dry after using Kerastase shampoo, yet I believe it is a high-quality product that I would still recommend to others.
My hair feels hydrated and shiny thanks to this easy-to-use fruity shampoo.
I absolutely adore this shampoo because it smells fantastically fruity and is very easy to use. I just add water, rub it in my hair until it sudses, and repeat the process to enjoy long-lasting shine and hydration that enhance durability.
My hairdresser recommended this shampoo, and it transformed my color treated hair into healthy, strong locks.
After my hairdresser's suggestion, this shampoo worked wonders on my color treated hair, making it noticeably healthier, stronger, and more manageable with every use.
I found this shampoo caused super oily hair, leading to frustration and disappointment.
This shampoo resulted in my hair becoming super oily, which was very disappointing. I requested a return but was denied due to a one-day delay, making this $60 purchase a frustrating experience for my hair care routine.
I recommend this shampoo seller for safe Amazon purchases with expiration dates.
After years of use, I was doubtful of Amazon purchases, but the seller's excellent packaging and expiration date disclosure provided confidence, leading to my strong recommendation.
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