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

2026-02-16 Shampoo reviews Categroy：Unisex Views：344

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 this deeply hydrating shampoo and conditioner for transforming my dry hair into soft, healthy locks daily.

As someone with parched hair, this hydrating shampoo delivers intense moisture while the conditioner seals it in. I use both religiously for silky, nourished locks that feel healthier every day.

I received leaking shampoo with loose lids, losing half despite bubble wrap. Won't reorder this mess.

Both shampoo and conditioner bottles had defective loose lids that leaked terribly during shipping. Even with protective bubble wrap, I lost half the product. This packaging failure ruined my purchase experience completely.

As someone with smell sensitivity, I adore this shampoo conditioner set because it leaves my hair feeling amazing without irritation.

Due to smell sensitivity, I love this shampoo and conditioner set. They leave my hair soft, clean, and healthy without any irritation or overwhelming scents.