4,9 from 3,315 reviews
Customer photo of Kristina
★★★★★
Kristina Verified

All my bald patches have grown back

I struggled with stress-related hair loss for months and tried ONNI alongside my dermatological treatment to stimulate hair growth. By now all the bald patches have filled in and I've gained a good few centimeters :) I'm definitely sticking with these products, even if they're a bit pricier. Worth every cent

Starter Set CLASSICReview ofStarter Set CLASSIC
Customer photo of Christine K.
★★★★★
Christine K. Verified

Wonderful products

I've been using the trial set for 4 weeks and am pleasantly surprised by the results. My chin-length fine hair in its natural color, still without any grays, feels much fuller right after washing and falls shiny and silky after blow-drying, without any styling products. Even though I always used high-quality salon products (Alterna, Joico, or Aveda), I always struggled with flyaway hair and couldn't do anything without styling products. After using the mask and the serum, my occasionally itchy scalp has also improved, and little new hairs are actually sprouting along my hairline. The scent of the shampoo feels like aromatherapy in the morning shower while washing my hair, I love it.

Tester setReview ofTester set
Customer photo of H.S.
★★★★★
H.S. Verified

Nothing but Onni

I've been using Onni for 4 years now. Nothing else touches my hair anymore, that's really all I need to say. And I've been taking the new capsules for 4 weeks and have to say, I feel like my hair structure is improving and little baby hairs are coming in.

INTENSE Hair Growth 2-piece setReview ofINTENSE Hair Growth 2-piece set
Customer photo of Cornelia R.
★★★★★
Cornelia R. Verified

I'm beyond happy!!!

I'll admit, my hair, my scalp, and I needed four weeks to truly fall in love 🫶 At first my hair got drier and my scalp itched more. Styling became harder…… BUT NOW… it's amazing!!! I'm sooo happy. My hair is soft, has more body, looks incredibly healthy, and I actually look forward to washing it because all the products feel so good. I'm thrilled 😍

Travel setReview ofTravel set
Customer photo of Bianca B.
★★★★★
Bianca B. Verified

Much fuller-feeling hair after just a few washes!!

I'm absolutely thrilled with the Onni products. Years of breakage and thin hair that I couldn't get under control despite lots of care. After one month with the Onni products, my hair is much softer, feels healthier, and is getting stronger. I can only recommend them!!

SENSITIVE setReview ofSENSITIVE set
Customer photo of Bettina T.
★★★★★
Bettina T. Verified

Amazing hair products

I bought the trial set first and then the full size – I'm thrilled with these products

Set of 2 2x250 mlReview ofSet of 2 2x250 ml
Customer photo of Sandra R.
★★★★★
Sandra R. Verified

Wonderful conditioner

I'm so happy… gorgeous hair, amazing scent 🌸 Though I do mix 2-3 drops of hair oil into the conditioner 🤗

Hair Growth Conditioner 250 mlReview ofHair Growth Conditioner 250 ml
Customer photo of Regina M.
★★★★★
Regina M. Verified

Very happy with the Onni Heat Protector

I've been using the Onni Heat Protector for 40 days and I'm absolutely thrilled! The product offers excellent protection from heat without weighing my hair down or making it look greasy. My hair still feels smooth and healthy after styling. A big plus is that it's easy to apply and has a lovely scent. What convinces me most is that my hair has looked less damaged since I started using it, even with regular use of straighteners and curling irons. The Onni Heat Protector has become an essential product in my hair care routine. Highly recommended! Regina Cajaes Morwinski

Heat protector 100 mlReview ofHeat protector 100 ml
Customer photo of Marie-Lou S.
★★★★★
Marie-Lou S. Verified

Completely convinced

I only use natural care products. Onni is one of them. Thank you for your work!

XXL setReview ofXXL set
Customer photo of Jezabel
★★★★★
Jezabel Verified

Lovely product!

I'm extremely prone to allergies, but I tolerate this ONNI really well.

XXL setReview ofXXL set
Customer photo of Natascha P.
★★★★★
Natascha P. Verified

Beautifully scented protection

Blow-drying and styling put a lot of strain on my hair. The Heat Protector shields my hair perfectly from the heat, and it no longer dries out! On top of that, it smells wonderful :-) I think it's fantastic!

Heat protector 100 mlReview ofHeat protector 100 ml
All reviews

More voices

★★★★★

Very happy

Very happy. No more itchy scalp.

Nadja F. · Verified
★★★★★

Hardly any hair loss after 4 weeks

After 4 weeks, almost no more hair loss. Unfortunately no new hairs have grown back yet, but that kind of thing just takes a while. I love this line and have reordered a second "Sensitive" set. The serum absolutely convinces me. My hair feels stronger again, has its shine back, and is easier to comb. This line is wellness for my hair. I'm 62 years old and have thin, short hair. I'm doing my hair a real favor with this wonderful line, and even though it's a bit pricier, my hair is definitely worth it to me. I'm so glad Alina Merkau on Instagram brought this wonderful product to my attention. Thank you for this fantastic product. Especially for us women, hair loss is truly frightening. I gladly recommend this wonderful line. I do have one point of criticism: precise usage instructions would really be appreciated!!

Marion S. · Verified