My part thickened in 2 months with Monat shampoo. Pricey but great volume, strength, scent. My hair feels healthier. Recommended.

2026-07-28 Shampoo reviews Categroy：Women's Views：74

My part thickened in 2 months with Monat shampoo. Pricey but great volume, strength, scent. My hair feels healthier. Recommended.Product Detail

My Thick Hair Secret: Part Closed in 2 Months

This is a review from Amazon.com about product:

MONAT IR Clinical Thickening Shampoo – Volumizing Shampoo for Dense, Thick Strands – Thickening Solution Crafted from Powerful Blend of Natural Ingredients, With Rosemary & Mint And Pea Extract

My Thick Hair Secret: Part Closed in 2 Months

i use this at night before i go to bed and then during the day i use Kerastase Genesis Hair Serum and its helped my scalp a lot

my part used to always be so far separated but its thickened and has closed together in just 2 months.

i bought this twice and im about to finish my second bottle and repurchasing it hurts me bc its so expensive. very overpriced but still worth it

What Makes Monat IR Clinic Thickening Shampoo Work?

This shampoo is formulated with a unique botanical blend that targets thinning hair from the root. Key ingredients include pea extract, rosemary, mint, and over 13 plant essential oils. Pea extract provides proteins that strengthen hair strands, while rosemary and mint stimulate the scalp to improve circulation and promote growth. The formula is also rich in omega-3 fatty acids, vitamins, and minerals, which nourish the scalp and hair follicles. These nutrients help reduce hair fall, increase volume, and give hair a thicker appearance.

How to Use It for Best Results (Based on Real Experience)

One user shared their routine: applying this shampoo at night before bed, then using a serum like Kerastase Genesis Hair Serum during the day. This dual approach helped their scalp health significantly. Within just two months, their once wide hair part noticeably thickened and closed together. The key is consistency—using the shampoo nightly allows the active botanical ingredients to build up and work over time. The product's keratin and amino acid complex reinforces hair structure, making strands less prone to breakage.

Why Users Call It “Pricey but Worth It”

Many reviewers note the high cost—around $40–$50 per bottle—but emphasize the visible results. The shampoo lathers well and leaves hair soft, smooth, and shiny without heavy buildup. It contains no sulfates or parabens, making it suitable for color-treated or damaged hair. The award-winning, vegan formula is also cruelty-free, aligning with ethical beauty standards. For those struggling with thinning hair or postpartum shedding, the noticeable thickening in just a few months often justifies the investment.

Scientific Insights Behind the Ingredients

The core of Monat's IR Clinical line is “Integrated Reverse” technology, which aims to reverse signs of hair aging. Pea extract is rich in peptides that can strengthen hair and reduce shedding. Rosemary oil has been studied for its ability to improve scalp circulation and may be as effective as minoxidil for hair growth. Mint oil provides a cooling sensation that soothes the scalp. Together, these botanicals create an environment conducive to hair regrowth and density.

Comparison with Other Hair Solutions

Unlike many thickening shampoos that rely on coating agents to temporarily plump hair, Monat penetrates the hair shaft and nourishes the scalp. Users who combine it with a serum often report faster results. The shampoo is free from harsh detergents, so it cleanses gently without stripping natural oils. This makes it a good choice for daily use, even on sensitive scalps. While the price point is higher than drugstore options, the concentrated formula means a bottle lasts several weeks with nightly use.

Tips for Maximizing Results

For best results, massage the shampoo into the scalp for at least 60 seconds to activate the botanical extracts. Follow with a conditioner from the same line to lock in moisture. Some users find that alternating with a clarifying shampoo once a week prevents product buildup. Because the shampoo is sulfate-free, it may not lather as much as conventional shampoos, but that's normal—it's still cleaning effectively. Patience is key: visible changes in hair density often appear after 6–8 weeks of consistent use.

Brand Reputation and Quality Assurance

Monat is a leader in premium, plant-based haircare. Their IR Clinical Thickening Shampoo has earned multiple awards and is recommended by stylists for clients with fine or thinning hair. The brand's commitment to clean beauty means all products are 100% vegan and cruelty-free, certified by Leaping Bunny. With a 4.4-star rating on Amazon from over 150 customers, it's a trusted choice for those seeking real thickening results without harmful chemicals.

This shampoo makes my curly hair smooth, smells incredible, but rotate use.

My naturally curly hair responds beautifully to this shampoo, becoming smooth and silky. I love the pecan scent. I just alternate shampoos to prevent film.

Pairing with conditioner made my hair voluminous and healthier.

Pairing with conditioner improved my hair's volume and health significantly.

Nioxin shampoo adds volume to my curls; still waiting for hair fall results.

Nioxin Hair Fall Defense: boosts curly volume, needs more product. Thin consistency, floral-chemical scent. Waiting 12 weeks for results. Trusted brand.

Great pine scent but pricey and low lather.

I love this shampoo's amazing pine scent, but it doesn't lather much and is expensive—typical for premium natural formulas.

Shampoo gave my hair noticeable shine, bounce, and a healthy look.

I discovered this shampoo gives my hair incredible shine, bounce, and healthy look. The creamy texture feels luxurious, and the coconut scent is wonderful. It transformed my dull hair into something vibrant and manageable, though the cost is steep for dai

Removes brassiness, adds shine, softens hair with pleasant scent

I highly recommend this shampoo for removing brassiness and restoring shine after a couple of washes. It leaves hair soft, moisturized, and smelling like amber, making it a great choice for chemically treated blonde hair.