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functionofbeauty.com, October 2026

Hair Care

Function of Beauty

Quiz-based custom shampoo and conditioner made to order for your hair type and goals

3.7★★★★☆out of 5
Status
Operating
Best for
Shoppers wanting personalized, vegan haircare
Visit functionofbeauty.com →

What's in the box: A box typically holds custom-formulated shampoo and conditioner made to your quiz results, with optional treatments, styling products or bodycare.

Function of Beauty builds shampoo, conditioner and other hair products around a short online quiz. You answer questions about your hair history, goals, damage and styling habits, and the brand mixes a made-to-order formula and ships it to you. The quiz takes about two minutes and drives the whole experience, so your results depend on how carefully you answer. The brand says its formulas are vegan, cruelty-free, sulfate-free, paraben-free and dermatologist tested, with a focus on naturally derived ingredients. Beyond everyday haircare, the range includes custom sets, a repair line called SOS, and bodycare. Subscriptions ship free, which makes recurring orders easier if you use product steadily. Personalization is the main appeal, but keep expectations measured. The site does not explain in much detail how one custom formula differs from another or what makes a given blend right for you. You won't know how it suits your hair until you have used it for a while. Subscription frequency and cancellation terms are not spelled out up front, so check those before you commit. If you are curious about tailored haircare and want clean, vegan formulas without hunting through store shelves, this is a sensible place to start.

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