2 Shampoos That Could Actually Be Accelerating Shedding, According To Hair Specialists

July 9, 2025 by Lisa Cupido

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When we talk about haircare, most of the spotlight goes to fancy conditioners, serums, and masks — the products that promise shine, softness, and strength. But here’s the thing: shampoo, the product we use most often and often think the least about, might actually be the real MVP (or the secret villain) in your hair routine. A good shampoo with nourishing, scalp-friendly ingredients can lay the foundation for healthy hair, helping to prevent breakage, dryness, and even excessive shedding.

On the flip side, using the wrong one — especially those packed with harsh sulfates, drying alcohols, or synthetic fragrances — can actually do more harm than good, stripping your scalp of natural oils and irritating hair follicles. Over time, that can lead to weaker strands and even contribute to thinning. Before you invest in another high-end hair mask, it might be time to take a closer look at your shampoo bottle — here are two ingredients to be aware of because they may contribute to thinning and shedding.

Shampoo with Sulfates

Sulfates, like sodium lauryl sulfate (SLS) and sodium laureth sulfate (SLES), are powerful cleansing agents commonly found in many shampoos because they create that satisfying foamy lather. While they’re effective at removing dirt and oil, there’s a con to them: they can strip away your scalp’s natural oils that are essential for keeping hair moisturized and protected. Over time, this can lead to dryness, irritation, and a weakened scalp barrier. For people with sensitive skin or pre-existing scalp conditions, sulfates can cause inflammation or itching, which may further aggravate shedding. Look for a sulfate-free shampoo to helps preserve your scalp’s natural balance and keeps your strands stronger and more resilient.

Shampoo with Dyes

Artificial dyes are added to shampoos purely for aesthetic reasons — to make the product look more appealing in the bottle. But they offer no benefit to your hair and can actually do harm. Many of these dyes are synthetic chemicals that can irritate the scalp, especially in people with sensitivities or allergies. This irritation may trigger inflammation, which can disrupt healthy hair growth and even lead to more shedding. Choose a dye-free shampoo to minimize this risk and support a cleaner, calmer scalp environment for healthier-looking hair.

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