Why scalp care is having a moment—and what that tells us.

Circana’s August 11, 2026 report says Canadian prestige haircare sales grew 23% in the first half of 2026 compared with the same period a year earlier. Hair serum sales increased 91%. The report associates the category’s growth with interest in scalp health and treatment-oriented routines. These are retail sales figures, not clinical findings or counts of blog readers. Read Circana’s report.

A sales increase can tell us that a category is receiving attention and spending. It cannot tell us that every product in that category is useful, that the product is suitable for a particular person or that a cosmetic formula treats a medical condition.

That distinction is especially important when a video moves quickly from a plausible explanation about the scalp to a promise about hair growth. Those are different claims, and they require different evidence.

When a new product category becomes popular, ask what problem the product is intended to address, what the maker actually claims, whether the claim refers to appearance or treatment, and what evidence is available for that particular formula.

A named ingredient is not a complete description of a finished product. Neither is a testimonial. Keep the product’s own directions and the limits of the available evidence in view.

We track publication dates, measurement periods, markets and whether a reported change describes sales, searches or social interactions. A forecast is labelled as a forecast. A large percentage from a small starting point is not treated as proof that everybody is buying a product.

When we update a trend article, we change its review date only after a substantive check or edit. We keep source links and explain corrections instead of quietly replacing an inconvenient number.

If scalp care is new to you, start by understanding your current cleansing routine and the directions on products you already own. Our two-zone guide explains how to organise that thinking. Persistent scalp symptoms or unusual shedding deserve a clinician’s assessment, rather than a purchase based on a trend.