A common problem for women with fine hair is that it doesn't hold a style, even after leaving the salon. Fine hair has a smaller diameter than medium or thick/coarse hair, making it smoother and less porous.

The $30 million haircare industry's secret: what fine hair really needs

With a $30 million industry built around haircare products, it's surprising that many shampoos and conditioners leave fine hair limp. However, there are specific products and techniques that can add grip, body, and volume to fine hair.

One such product is Kerativ Redensify Reset Shampoo, which is designed for thinning hair and contains velvet-flower seed extract. This peptide penetrates the hair fibers and expands the diameter without weighing hair down.

Rich conditioners are not the answer: what to look for in a fine hair conditioner

Rich conditioners will leave fine hair too soft and limp. Instead, look for conditioners that are specifically formulated for fine hair and contain strengthening proteins such as hydrolyzed rice, wheat, or keratin.

These proteins bolster fine strands so they have more body, at least temporarily. It's also essential to check the label for words like volumizing, thickening, body-building, etc.

From primers to root-lifting sprays: expert techniques for fine hair

Using a hair primer can help prep hair so that products applied on top grip better. One such primer is Keratin-based.

After priming , layer on a root-lifting spray with flexible polymers to give hair hold without leaving it stiff or sticky . Look for a formula that also thickens up individual strands .

Concentrate on lifting the roots with your fingers or a round brush, making sure they're completely dry. If roots are even the slightest bit damp, your style will collapse.

Open questions: what's still unknown about fine hair

While there are specific products and techniques that can add body and volume to fine hair, there are still many unanswered questions about fine hair. For example ,what is the exact mechanism by which velvet-flower seed extract expands the diameter of hair fibers?

Furthermore, what are the long-term effects of using products containing strengthening proteins on fine hair?

What auditors flagged in the May filing: a closer look at the haircare industry

A closer look at the haircare industry reveals that many products are not specifically formulated for fine hair. Instead, they are designed for thicker hair types and can leave fine hair limp.

However, there are some companies that are taking steps to address this issue. for example, Kerativ has developed a shampoo specifically designed for thinning hair.