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

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

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 lasts for ages, so I use it long-term and repurchase it happily.

I have used this shampoo for a very long time because it lasts ages, and I keep buying it again for its great value and wonderful hair results that I adore.

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My husband and I are thrilled with this shampoo's ability to enhance hair feel and condition, even as we await regrowth results after his sickness.

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This shampoo bar lathers amazingly, making my hair feel great and clean. The conditioner bar is dreamy with its soft scent, efficient use, and both bars last well over time.

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After ten years, this shampoo keeps my hair clean and shiny affordably.

For a decade, this shampoo has delivered clean, shiny hair with moisturizing benefits and great value in a sturdy bottle.

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This conditioner works wonders on my dry, color-treated hair, lasting three washes.

My favorite conditioner for dry, color-treated hair; I use it weekly, and each pack provides three washes, leaving hair soft and vibrant with easy manageability.

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

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