The fresh start to your daily ritual.
400 ml / 13.5 fl oz
MEET YOUR NEXT HAIR OBSESSION
The salon transformation.
The everyday follow-through.
Meet the ONYX Mineral Complex Straightening System and a simple aftercare routine, made to work together.
REGISTER FOR OUR NEXT MASTERCLASS
· YK Salon · Millburn, NJ
THE COCOCHOCO COLLECTION
Shop ONYX home care and explore the professional treatment.
The fresh start to your daily ritual.
400 ml / 13.5 fl oz
A softer follow-up to your cleanse.
400 ml / 13.5 fl oz
Make room for an extra-care moment.
500 ml / 16.9 fl oz
The final touch. The ONYX finish.
50 ml / 1.7 fl oz
ONYX conditioning with a cool tone for blonde, highlighted and grey hair.
400 ml / 13.5 fl oz
A leave-in step between conditioning and styling.
150 ml / 5 fl oz
The complete ONYX home routine: sulphate-free shampoo, conditioner and the weekly mask, together at 20% off.
400 ml + 400 ml + 500 ml
The ONYX Mineral Complex Straightening System. A professional, formaldehyde-free straightening treatment, developed for a finish that feels like you. Smoothing, repair, shine and curl reduction come with it.
1000 ml / 33.8 fl oz

THE SCIENCE BEHIND THE SHINE
Meet the ONYX Mineral Complex Straightening System. A professional straightening treatment, developed for a finish that feels like you.
ONYX is a mineral complex straightening system, not a keratin treatment. Your stylist selects the treatment approach to suit your hair and the finish you want, from sleek and straight to softer with natural movement.
From softer, natural movement to a sleek, glass-like finish, the professional system puts your desired result at the center of the consultation.
Follow your salon visit with ONYX shampoo, conditioner, mask and serum. Ask your stylist how to build an aftercare routine for your hair.
LET YOUR HAIR DO THE TALKING
Actual hair. Actual salon work.
Get a closer look at the ONYX finish.


01 / 05 — Dark lengths
GREAT HAIR DOESN’T END AT THE SALON.
Start with the everyday essentials.
Make the rest of the routine your own.
FOR THE PEOPLE BEHIND THE SCIENCE
Make ONYX part of your next transformation. Connect with the COCOCHOCO team for professional product guidance, pricing and education.
THE COCOCHOCO COMMUNITY
Salon moments from the COCOCHOCO collection. Follow @cocochocousa for more transformations, tips and inspiration.
A LITTLE MORE KNOW-HOW
The ONYX Mineral Complex straightening treatment and all 1-liter bottles are for salon professionals. You can shop the smaller ONYX shampoos and conditioners, mask, serum, leave-in and aftercare kits for home.
The professional treatment is performed by a stylist. Aftercare is the routine you follow afterward: cleansing, conditioning and finishing with products suited to your hair.
The ONYX shampoo and conditioner are the daily-care pairing. You can add the mask or serum to build out your routine. Your stylist can help choose the right products and frequency.
Reach the COCOCHOCO team at support@cocochoco-usa.com or 725-284-6632 for product guidance and education.
A LITTLE MORE COCOCHOCO
Fresh routines, salon stories and a little know-how.
ASK COCO
A little hair expertise.Hi, I’m Coco, COCOCHOCO’s assistant. How can I help with your hair routine, ONYX or professional training?
Answers come from the COCOCHOCO site content. For orders and account questions, contact the team.