Boldify vs Caboki:

Which Hair Fiber Is Right for You?

Both make thinning hair look fuller in seconds. The real difference is what's in the bottle — and how it sits on your scalp every day. Here's an honest, side-by-side look.

The honest breakdown

Both work the same basic way: tiny fibers cling to your existing hair and make thinning areas look denser, then wash out. They're concealers, not treatments — none of them regrows hair. Where they differ is the material and the formula, and that's what should decide your choice.

Boldify — the nylon fiber

Boldify markets its hair fibers as vegan and offers a wide range of shades along with several application accessories. However, it’s worth taking a closer look at the ingredient list: the formula includes nylon, a synthetic plastic fiber, along with several other additives, so it isn’t a purely plant-based fiber product. Best if: you’re looking for a vegan option and don’t mind nylon in the formula.

Caboki — the plant-based formula

Caboki takes a scalp-friendly approach, using plant-based fibers colored with mineral pigments—without nylon fibers or a long list of additives. Because the color comes from mineral pigments rather than water-soluble dyes, it stays true and helps avoid the unwanted “green tint” some hair fibers can develop when exposed to sweat or moisture. With a clean, minimalist formula designed with daily use and sensitive scalps in mind, Caboki is an excellent choice if you want natural-looking, plant-based hair fibers that are gentle enough to wear every day.

Which should you choose?

• Choose Boldify if you’re looking for a vegan option with plenty of shade choices and accessories and don’t mind nylon in the formula.
• Choose Caboki if you want the most natural, plant-based formula with colorfast color that won't run green and a formula gentle enough for daily wear.

Try the plant-based option

Not sure of your shade? Start with a sample size.

★ Trusted since 2011 ★ Clean ingredients ★ Gentle on scalp