The One SYSTEM FAQ’s
The Science Behind THE ONE
Each formula blends high-performance actives with natural treasures; Moringa, Saffron and Rice Water — rooted in ancient rituals, perfected by modern science. Clinically tested in an ISO-certified Italian laboratory, they visibly strengthen, hydrate and protect hair and scalp.
Yes. Every formula is designed to perform on straight, wavy, curly and coily hair, including colour-treated or chemically processed hair.
We do not use harsh sulfates, silicones or parabens. Each product is formulated to cleanse and treat gently, while maintaining your hair’s health and natural balance.
Absolutely. Our gentle, pH-balanced formulas protect treated hair and help to prolong colour and smoothness.
Yes. THE ONE Hair System is fully vegan and never tested on animals.
Yes. Independent ISO-certified laboratories in Italy verify the safety, tolerance and efficacy of every product.
Each scent is crafted using a blend of natural and safe-synthetic notes to deliver a refined, signature fragrance while remaining gentle on scalp and skin.
Our packaging is recyclable and produced in collaboration with responsible European partners. We prioritise low-impact manufacturing and ethical sourcing.
How to Use THE ONE System
For most hair types, we recommend 2–3 times per week. You adjust the frequency based on your scalp’s needs and your personal lifestyle.
Yes. Our Boosters are designed to enhance any routine and can be mixed with THE ONE Mask, or applied directly on damp hair for targeted benefits.
Cleanse → Condition → Treat → Boost. For optimal results, follow the complete THE ONE ritual.
Clinical tests show measurable improvement after three uses, with continued transformation over time.
Yes. The Scalp Booster and the entire range are dermatologically tested for safe scalp use.
Yes. Our clean formulations contain no ingredients contraindicated for pregnancy or lactation. If uncertain, consult your physician.
Minimise heat styling, protect from UV exposure and reapply the relevant Booster between washes to maintain shine and strength.
Each product performs beautifully on its own, yet the full System delivers synergistic, amplified results - “one ritual, total transformation.”
Orders & Subscriptions
Subscribe to receive your chosen products automatically at your chosen intervals. You’ll receive an email before each renewal, and can modify, skip or cancel anytime through your account.
Yes — standard return and exchange policies apply. Please contact our customer care team within the 14 day return window.
Log into your account, open “My Subscriptions” and select Change, Skip or Cancel. You’ll receive instant confirmation via email.
Your chosen payment method is charged automatically before each shipment. A confirmation email with your invoice is sent once billing is complete.
No. Adjusting a single charge date will not alter your future delivery rhythm.
You can update both at any time through your account dashboard, under “Manage Subscriptions.”
Yes. A reminder email is sent several days before each order is processed.
Of course. All our products are available for one-time purchase.
We currently ship across the UK, EU and selected international destinations. For full details, visit our Shipping & Delivery page.
Every product is proudly formulated and produced in Italy by Beauty & Business S.p.A., part of the Alfaparf Milano Group.