- Is this duo good for fine hair?
- It is formulated for thick hair. Fine hair often finds the shea butter conditioner too heavy, so use it on ends only or every other wash.
- Does it contain sulfates or silicones?
- No. Both bottles are sulfate-free, paraben-free and silicone-free, so expect a thinner lather than sulfate shampoos.
- Will biotin make my hair grow?
- There is no strong evidence that topical biotin grows hair. Treat it as a conditioning ingredient rather than a growth treatment.
- Is it safe for color-treated hair?
- The sulfate-free, gentle formulas are generally considered color-safe, though no shampoo prevents fading entirely.
- What is in the box?
- One full-size biotin and superfruit shampoo and one matching conditioner, packed as a two-piece duo.
- How does it compare with drugstore sulfate-free sets?
- It has a cleaner label and a richer conditioner than most drugstore sets, but lathers less and costs more per bottle.
- Where is the Soapbox Biotin & Superfruit Shampoo & Conditioner Duo cheapest?
- At Ulta Beauty, for $21.98, as of our latest check.