Big, beautiful and bouncy hair can be yours, thanks to R+Co’s Dallas Biotin Thickening Treatment. It’s formulated to add vitality and volume to fine, flat hair while locking in moisture from root to tip. Packed with an invigorating cocktail of ingredients, don’t be surprised if this mega-thickening formula becomes a non-negotiable in your routine. It’s infused with biotin to strengthen the infrastructure of the hair and improve vitality, alongside volumising rice starch and hydrating castor oil. Ginseng root is also key for scalp health and preventing breakage, while repairing quinoa seed protects the cuticle and reduces split ends. Expect shiny, textured and voluminous locks with minimal effort.
Big, beautiful and bouncy hair can be yours, thanks to R+Co’s Dallas Biotin Thickening Treatment. It’s formulated to add vitality and volume to fine, flat hair while locking in moisture from root to tip. Packed with an invigorating cocktail of ingredients, don’t be surprised if this mega-thickening formula becomes a non-negotiable in your routine. It’s infused with biotin to strengthen the infrastructure of the hair and improve vitality, alongside volumising rice starch and hydrating castor oil. Ginseng root is also key for scalp health and preventing breakage, while repairing quinoa seed protects the cuticle and reduces split ends. Expect shiny, textured and voluminous locks with minimal effort.
Big, beautiful and bouncy hair can be yours, thanks to R+Co’s Dallas Biotin Thickening Treatment. It’s formulated to add vitality and volume to fine, flat hair while locking in moisture from root to tip. Packed with an invigorating cocktail of ingredients, don’t be surprised if this mega-thickening formula becomes a non-negotiable in your routine. It’s infused with biotin to strengthen the infrastructure of the hair and improve vitality, alongside volumising rice starch and hydrating castor oil. Ginseng root is also key for scalp health and preventing breakage, while repairing quinoa seed protects the cuticle and reduces split ends. Expect shiny, textured and voluminous locks with minimal effort.
Big, beautiful and bouncy hair can be yours, thanks to R+Co’s Dallas Biotin Thickening Treatment. It’s formulated to add vitality and volume to fine, flat hair while locking in moisture from root to tip. Packed with an invigorating cocktail of ingredients, don’t be surprised if this mega-thickening formula becomes a non-negotiable in your routine. It’s infused with biotin to strengthen the infrastructure of the hair and improve vitality, alongside volumising rice starch and hydrating castor oil. Ginseng root is also key for scalp health and preventing breakage, while repairing quinoa seed protects the cuticle and reduces split ends. Expect shiny, textured and voluminous locks with minimal effort.
Last updated at 12/11/2025 00:02:15
originally posted on randco.com
I love every Dallas product and every other R+Co product I've ever used. This is a big miss for me. It weighs my hair down, makes it look dirty and even thinner. I thought maybe I messed something up the first time so I paid extra attention to the directions, set a timer, and rinsed it out really well the second and third times. It was the same result all three times. Oh well, can't win them all.
originally posted on nordstrom.com
I don’t know what these other reviewers have experienced because my results were great. My hair was not greasy, but I did check out the application video at r+co and it says to apply mid hair and down. I saw instants results and several people asked what I had done to my hair to make it thicker. It’s not a miracle though, so have reasonable expectations. I felt my hair was about 30% thicker and I’ll take it!
originally posted on randco.com
I bought mine at the salon and it’s amazing! My hair is very fine and thin… I tried so many products and was sceptical… but this really works! You do have to hold it for full 5 min, then rinse off… I skip conditioner and use leave in from R&co on my ends only… then I use defending spray and style! It literally looks like I have so much more hair! Love it!
I love every Dallas product and every other R+Co product I've ever used. This is a big miss for me. It weighs my hair down, makes it look dirty and even thinner. I thought maybe I messed something up the first time so I paid extra attention to the directions, set a timer, and rinsed it out really well the second and third times. It was the same result all three times. Oh well, can't win them all.
I don’t know what these other reviewers have experienced because my results were great. My hair was not greasy, but I did check out the application video at r+co and it says to apply mid hair and down. I saw instants results and several people asked what I had done to my hair to make it thicker. It’s not a miracle though, so have reasonable expectations. I felt my hair was about 30% thicker and I’ll take it!
I bought mine at the salon and it’s amazing! My hair is very fine and thin… I tried so many products and was sceptical… but this really works! You do have to hold it for full 5 min, then rinse off… I skip conditioner and use leave in from R&co on my ends only… then I use defending spray and style! It literally looks like I have so much more hair! Love it!
I have only used this once since just receiving a week ago. I thoroughly loved the results after just the one use and will continue to use. It’s truly a very unique treatment in every good sense of the word. Thanks so much for taking the time to produce this product.
This product was easy to use and incorporate into shower routine, I find it replaces conditioner. I didn't see as big a difference in volume/thickness as I wanted but it is a noticeable difference. My hair is super fine and low density the product didn't weigh it down or make it greasy. Still searching for holy grail for volume
Just used it this morning and followed instructions. My hair was a bit thicker looking , luckily I used extra conditioner after shampooing with Dallas shampoo as I know thickening products cause my hair to be on the dry side. I have a short bob and it is a bit too fluffy after this treatment but no frizz. Next time I will only use it on the root and halfway down my hair, no on the bottom of my hair. I don't like my entire head of hair to look puffy. It does work, have to adjust application next time. Also, a very small amount is needed, hopefully this tube will last awhile as it is on the pricey side for 3 ounces of product. Time will tell if the no frizz thru 10 washes is true.
I am fast approaching 78! My hair is grey/ white, as I no longer color it. I have a wonderful stylist but my hair is thinner, which is probably age related. This product was the best thing I have tried. So easy to use… and the results… 5 star! The fact thatI use it when I wash my hair is just perfect, also. Easy and the results are terrific. I can style as usual, but with more body. Awesome!
I haven't used this product for long, but it is already providing tons of volume!! It replaces my conditioner once a week or so- it smooths through my hair easily after washing and leaves it feeling extremely soft. By the time my hair air dries I can definitely tell I’ve got that Dallas effect 🌆 it’s a small bottle for the price but since I’m not using it everyday, I think it will go a long ways. I already have thick hair so I can’t really speak to the thickening effect... But if you’re looking for volumes give it a shot!
I have insanely dry scalp and very straight Asian hair. I have a razored shag cut so I like there to be movement and texture in my hair. This gives me texture to work with even with clean damp hair and its a CONDITIONER. WHAT IS THIS WITCHCRAFT?! This has helped my dry scalp so much and I actually condition my scalp first with Dallas conditioner to get the most moisture to my itchy and dry scalp.
The R Co Dallas Biotin Thickening Treatment has been a game-changer for adding volume and thickness to my hair. This treatment is packed with biotin, which strengthens and supports hair health, and it really does deliver on its promise to make hair look fuller and more voluminous.I apply it to damp hair before blow-drying, and I immediately notice a difference in the body and texture. It doesn’t weigh my hair down or leave any residue, and it has a light, pleasant scent that makes the experience even better. My hair feels softer, looks thicker, and has a noticeable lift that lasts throughout the day.While it’s a bit of an investment, the results make it worthwhile, especially if you struggle with fine or flat hair. For anyone looking to boost volume and ... MoreThe R Co Dallas Biotin Thickening Treatment has been a game-changer for adding volume and thickness to my hair. This treatment is packed with biotin, which strengthens and supports hair health, and it really does deliver on its promise to make hair look fuller and more voluminous.I apply it to damp hair before blow-drying, and I immediately notice a difference in the body and texture. It doesn’t weigh my hair down or leave any residue, and it has a light, pleasant scent that makes the experience even better. My hair feels softer, looks thicker, and has a noticeable lift that lasts throughout the day.While it’s a bit of an investment, the results make it worthwhile, especially if you struggle with fine or flat hair. For anyone looking to boost volume and strengthen their strands, R Co’s Dallas Biotin Thickening Treatment is a fantastic choice. It’s like giving your hair a bit of extra life in every spray!
