Shampoo reviewsUnisexNoticing thinned shampoo with odd smell; possibly expired or altered batches received.

Noticing thinned shampoo with odd smell; possibly expired or altered batches received.

2026-01-02 Shampoo reviews Categroy:Unisex Views:264


Experiencing thinned consistency and chemical odor in recent shampoo orders, suspecting expired stock or potential tampering affecting product integrity.


This is a review from Amazon.com about product:


Keratherapy Keratin Infused Moisture Shampoo, 10.1 fl. oz., 300 ml - Anti Frizz Moisture Shampoo for Oily Scalp and Dry Ends - Kerabond Technology, Aloe Vera, & Willow Bark


My Shampoo Review: Thinned Texture & Chemical Smell Issues


The last 2 shipments I received shampoo that was thinned out and had a weird chemical smell to them. Either they are very old batches that have been sitting on a shelf for a while or they have been tampered with.


Shampoo Basics & Tips


Understanding Shampoo Consistency and Odor Changes


Thinned Formulation: Shampoo viscosity changes could indicate ingredient separation due to prolonged storage. Most formulas contain stabilizers that degrade over 2-3 years, potentially altering texture.


Chemical Smell Development


Shelf Life Factors: Preservatives like parabens break down over time, releasing volatile compounds. Temperature fluctuations during storage accelerate this process, creating unusual odors.


Batch Age Indicators


Production Codes: Manufacturers use Julian date coding (e.g., 22435 = 2022 day 435). Older batches exceeding 36 months may show quality degradation.


Tampering Evidence


Packaging Integrity: Legitimate shrinkage occurs naturally, but sudden viscosity changes combined with broken seals suggest possible dilution or contamination during handling.


Quality Preservation


Storage Conditions: Ideal shampoo preservation requires stable temperatures (15-25°C) and humidity below 60%. Improper storage accelerates ingredient breakdown.



I love how this shampoo makes my hair shiny, soft, and fragrant, enhancing its value.

This shampoo leaves my hair shiny and soft with a nice scent, improving its look. However, I find it expensive compared to other options available in the market.

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This shampoo made my hair soft before drying and full after use.

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I recently switched to this shampoo from Matrix Length Goals and I'm thrilled. It effectively moisturizes my natural hair and extensions, making them blend together without any tangles.

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I recommend this shampoo for cleansing scalp, removing oil, and hydrating hair.

This is the best shampoo I've used; it thoroughly cleanses my hair and scalp, removing excess oil while hydrating and leaving it silky soft. I recommend it for being paraben and sulfate-free.

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I absolutely love Self Absorbed shampoo for its low price, big quantity, and amazing hair results, despite the average scent.

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I fixed my hair issues with this shampoo and reorder it regularly.

My thinning and frizzy hair improved significantly with this shampoo. I am so pleased that I have reordered it multiple times and continue using it.

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Tags: thinned shampoo chemical smell expired batches product tampering storage conditions


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