Mielle Organics Avocado & Tamanu Anti-Frizz Stay Straight Serum - 6 fl oz
$12.99 ($2.17/fluid ounce)
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$8.39($0.26/fluid ounce)
Buy 1, get 1 25% off ECO STYLE hair care items
4.2 out of 5 stars with 29 ratings
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4.2 out of 5 stars with 171 reviews
effectiveness: 3.38 out of 5
quality: 3.71 out of 5
value: 3.29 out of 5
33% would recommend
9 recommendations
1 out of 5 stars
Thumbs down graphic, would not recommend
13 November, 2025Verified purchase
(no review title)
This serum makes my curly hair feel dull & dry.
1 reply from mielleorganics Team team - 2 months ago
So sorry if you're having trouble with your new Stay Straight Serum. This could help - Refrigerate to Chill, Apply Cold Before Styling. Refrigeration Recommended, NOT Required. Shake well before use. After applying Leave-In Conditioner, blow dry hair. Apply dime size amount of Anti-Frizz Stay Straight Serum, gently rub through hair from root to end and comb. Adjust amount according to hair type, texture, length, density and straightening needs. Do not overuse. Proceed to straighten with flat iron. You can message us direct!
4 out of 5 stars
16 August, 2025
originally posted on influenster.com
Recommend
[This review was collected as part of a promotion.] The Mielle Organics Anti-Frizz Stay Straight Serum keeps my hair sleek, smooth, and frizz-free even in humidity. It’s lightweight, non-greasy, and adds a healthy shine without making my hair feel heavy. Perfect for achieving a polished, straight look that lasts all day.
3 out of 5 stars
25 June, 2025
originally posted on Mielle Organics
New product
Still trying to love it. I have only used twice and hair still frizzy. Do like the way it makes my hair feels
1 reply from Mielle Customer Service team - 4 months ago
Truly happy you're enjoying how it feels! Let us know if we can help with tips! In the mean time, check out these suggested tips from our Texture Toolkit! https://mielleorganics.com/blogs/texture-toolkit/7-ways-to-avoid-frizz-in-the-summer https://mielleorganics.com/blogs/texture-toolkit/refrigerate-to-activate-what-is-cold-application-technology
5 out of 5 stars
18 June, 2025
originally posted on influenster.com
good
[This review was collected as part of a promotion.] its so soo good product . likee it very very much. texture is perfect . packaging is so cute like it . highly recommended it to all . very good product. value is perfect for this prodict
5 out of 5 stars
18 June, 2025
originally posted on influenster.com
Helps hair with frizz
[This review was collected as part of a promotion.] This helps with my hair keeping it less frizz and neat. This neat packaged spray bottle does the job when applying the product to your hair. This light spray not only smells great but is worth every penny.
5 out of 5 stars
18 June, 2025
originally posted on influenster.com
Not bad
[This review was collected as part of a promotion.] I received this product complimentary for my honest review. This is one of the few products in this line that work for my hair. It creates a smooth sleak of finish. It feels hydrated but leans toward the oily side
4 out of 5 stars
18 June, 2025
originally posted on influenster.com
Great smell!
[This review was collected as part of a promotion.] I received this product for free from influenster and Mielle Avocado and Tamanu in exchange for my honest review. The smell of this sérum is AMAZING, I'm obsessed, my hair looks shinier when I use it, it's a lot of product, this sérum is gonna last a while, it helps with my frizz BUT makes my hair very greasy.
3 out of 5 stars
18 June, 2025
originally posted on influenster.com
Nice
[This review was collected as part of a promotion.] This product has a very strong scent. It is reminiscent of herbal essence or garnier fructis. I spray this into my hands and work it into my hair so that I have more control over how much product I am using. By doing this, I can prevent it from weighting down my hair. It works nicely for the straight sleek look.
4 out of 5 stars
27 May, 2025
originally posted on Mielle Organics
Dispenser needs Improving
I love the content of the bottle. I hate how the product is dispensed. The product is too thick to be sprayed onto the hair. There should be a pump dispenser where you just pump the amount you want into your hand and then apply it to your hair. That’s the only thing wrong with this product. In order for me to use it properly I need to open the bottle take the dispenser out and pour it into my hand. Please make this change.
2 out of 5 stars
Thumbs down graphic, would not recommend
28 April, 2025Verified purchase
Does nothing.
It didn’t do anything.
1 reply from mielleorganics Team team - 9 months ago
We're sorry if the serum wasn't quite the match for you. It might enhance the results in your routine pairing it with the Avocado & Tamanu Anti-Frizz Slip & Seal Leave-In Conditioner. It can help nourish and moisturize your hair, which might give you better results when used together with the serum. The combination should help with frizz control and keep your hair looking sleek! Let us know if we can empower you further!
5 out of 5 stars
18 January, 2025
originally posted on Mielle Organics
Great for natural heat treated hair.
I’ve been using this for 30 days now and my hair stays straight for longer than it has ever before.
1 reply from Mielle Customer Service team - 1 year ago
We’re so thrilled this is the match for you! We love championing your journey.
5 out of 5 stars
6 January, 2025
originally posted on influenster.com
Great results
[This review was collected as part of a promotion.] I had never heard of this company before getting this sample. It is so amazing. Makes my hair feel wonderful and smells great. I have had this bottle for months and it has lasted way longer than I expected. It’s a great value.
1 reply from Mielle Customer Service team - 1 year ago
Thank you for the high praise! Your happiness is so rewarding!
1 out of 5 stars
Thumbs down graphic, would not recommend
21 December, 2024Verified purchase
Mielle Avocado and Tamanu Anti-Frizz Stay Straight Serum
All of my hair is falling out since using it.
1 reply from mielleorganics Team team - 1 year ago
Hey love! ❤ We don't want to miss you. We wanted to say once again -- we’re truly sorry to hear about your experience, and we understand how distressing hair shedding or loss can be. Our products are designed to support healthy hair, but we recognize that everyone’s hair journey is unique. We recommend consulting with a dermatologist or trichologist to understand the root cause of the issue. We take consumer feedback to heart. We can ensure that internal and third-party independent labs conduct rigorous and frequent testing to guarantee product safety and efficacy. Your hair health is important to us! We’re continuously working on expanding our educational resources through videos, blog posts, and expert partnerships to help you understand your hair better and to ensure that our products are used in a way that supports long-term hair health. We are here to support you every step of the way. Please reach out to us directly with any questions or concerns. https://mielleorganics.com/pages/contact
5 out of 5 stars
Thumbs up graphic, would recommend
4 December, 2024Verified purchase
PERFECT FOR SILK PRESS
This serum is perfect I do a at home silk press once a week and this keeps my hair from poofing up or frizzing up the whole week and keeps it silky.
1 reply from mielleorganics Team team - 1 year ago
Yesss! Sounds like everything is coming up, Lily! We love it when you win. Rock those silky tresses!
5 out of 5 stars
6 November, 2024
originally posted on Mielle Organics
Works Well, Smells Amazing
I bought this as a part of this whole set and it does not disappoint. I’m a 3c girlie who hadn’t straightened my hair in two years. And when I did, my silk press was on point.
1 reply from Mielle Customer Service team - 1 year ago
We're so happy your Mielle is working wonders for you. We love helping you make your hair happy. Thank you for making our morning brighter!
5 out of 5 stars
12 October, 2024
originally posted on influenster.com
Helps to smooth my hair
[This review was collected as part of a promotion.] I really like this serum as it has Avocado ingredient in it. This makes my wavy dull hair soft and frizz free and its really easy to use. I can feel my hair texture gets improved. It has elegant packaging plus i like its price is really good.
1 reply from Mielle Customer Service team - 1 year ago
We love helping you make your hair happy. Thank you for sharing the love!
5 out of 5 stars
Thumbs up graphic, would recommend
8 October, 2024Verified purchase
This is Exactly what I needed!!
I had to get online to write a review. I’ve permed my hair since elementary school. I finally decided to go natural but love the look of straight hair but no longer want to use the hard and heavy products. This stuff is exactly what I needed! After I wash and blow dry my hair. I take a small section, apply it to the root and flat iron. It stays until the next wash. This line will allow me to be naturall with the sleek look!
1 reply from mielleorganics Team team - 1 year ago
Thank you so much for taking the time to share your experience! We're so proud to hear you found your match with the Straight Serum! Happy hair days ahead!
4 out of 5 stars
8 October, 2024
originally posted on influenster.com
Serum
[This review was collected as part of a promotion.] Texture is perfect. Not to think and not thin. It helps keep your hair straight and not get frizzy. It smells really good and the scent last days. It's worth the price for it.
1 reply from Mielle Customer Service team - 1 year ago
We couldn't be more thrilled how much you are enjoying your Straight serum! Thank you!
4 out of 5 stars
3 October, 2024
originally posted on influenster.com
Anti frizz stay straight serum
[This review was collected as part of a promotion.] My hair naturally falls flat and I haven’t really had much experience with hair serums so much. I used a super teeny amount and the serum seemed to help tame some of the weird flopping my straight hair does at times without appearing or feeling super oily.
1 reply from Mielle Customer Service team - 1 year ago
That's great to hear! We're happy it helps in your routine with the frizz! 😊
1 out of 5 stars
Thumbs down graphic, would not recommend
7 September, 2024Verified purchase
Not good
This product broke my hair. I noticed whenever I used it my hair started to shed
1 reply from mielleorganics Team team - 1 year ago
Good day, We always desire the best possible experience for you. We are truly sorry to hear if you are not happy with your purchase. Rest assured we formulate Mielle without harsh chemicals but with essential oils and beneficial ingredients. We are blown away by how many have enjoyed this product, but we greatly appreciate that not every product will work for everyone or the same when a number of fluctuating factors affect our hair success -- routines/regimes, hydration, nutrition/diet, sensitivities/tolerances, current hair needs/conditions, hormone changes, stress... and more. Even the types of products we need in different seasons can vary. You may know.. Hair shedding is a natural process. According to the American Academy of Dermatology Association, it's normal to lose between 50 to 100 hairs per day. But… Various factors, like hormonal changes, heredity, medications, stress, poor nutrition, and excessive styling, can contribute to increased hair shedding. please Please know… Our products undergo rigorous and frequent internal and 3rd party testing to ensure their safety and efficacy. Mielle Rosemary Mint Oil and Shampoo have been dermatologically tested for skin safety, and no indications of irritation or sensitization were found. Additionally, these products have been tested for eye compatibility in case of accidental exposure, yielding favorable results. None of the negative experiences alleged have been medically confirmed as health issues caused by our products. We always encourage you to seek professional advice from a doctor or board-certified dermatologist for an accurate evaluation and personalized recommendations. We want you to have the BEST JOURNEY POSSIBLE! Please, feel free to connect with us at Mielle so we can better gain understanding of your journey or offer assistance to empower you. https://mielleorganics.com/pages/contact for one of our team members from our Global Consumer Relations department.