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

2026-02-28 Shampoo reviews Categroy：Unisex Views：368

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.

This shampoo delivers amazing softness and shine, though bottle leakage during shipping needs improvement.

My hair transformed with this shampoo's nourishing formula - silkier strands and reduced frizz. Disappointed by the faulty seal that leaked product, but results outweigh packaging issues.

I love how this shampoo adds volume to my son's thinning hair effortlessly!

This shampoo transformed my son's thinning hair—gentle, adds fullness, and recommended by a pro. His hair feels thicker and he's thrilled!

I found an affordable aromatic shampoo that cleans thoroughly, adds volume to thin hair, and lasts months with minimal usage.

This shampoo transformed my thin hair with its light, airy feel and aromatic cleanse. Though the bottle design differs from images, the concentrated formula lasts months while maintaining vibrant freshness effortlessly.