body{margin-left:12%}Product ReviewsRated 4.41 out of 5 stars1332 ReviewsMost Helpful Positive ReviewI really like this product, it gives the hair body.I started just using on the crown, then I switched to all over, works great for imparting body.Most Helpful Critical ReviewFormula changeThe formula on this product has changed. I have been using Guts10 for about eight years and I noticed that after the last bottle I purchased, I now have a ton of flyaways which has never occurred before. I compared the ingredient list on the bottle with the ingredients listed on Redken's website, and the formula has indeed changed. The funny thing is that they are claiming they are "not aware of any recent formula changes with this product." I'm highly disappointed in this company for not owning up to this. I guess they assume consumers cannot do their own research and do something as simple as compare ingredient lists.Reviewed by 1332 customersYes5Judi from Rockford, I'll.Easy to use and perfect for my straight hairI would buy this again.5RITA from MNI have straight, fine hair and loved the lift.Volume & holds my curls5 from Dallas, TxThis is the best to make my 2a-2b waves look curlier than they really are & creates lasting volume & hold 😁Love this product.5Diane from Ocala FLLove this product! It makes my hair so manageable.Finally found a winner5Beth from TexasI have been growing my hair out from a pixie and been using Full Frame 07 for years. I was sad that it had been discontinued and have been struggling to find something that didn't dry my hair out. This is it! It left my hair soft. Not as much volume as I would like but I will take that over crunchy hair.Formula Changed1Lolabunny125 from New JerseyI had been using Guts for many years and LOVED it. Purchased 2 cans from Ulta while on sale over a year ago. Used up my supply and started on the new ones. Absolutely NOTHING like the older cans I had. Left my fine hair very dry, crunchy with absolutely no volume. Company claims nothing changed??? Tell that to my hair!!! And, looking at reviews, others complained as well. I am so tired of companys supposedly "fixing/updating" products that don't need fixing. Those two cans were a total waste of my money that went right into the trash. Redken seems to be doing this alot. It seems their Extreme Length formula changed too. And not for the better. Another product I was very happy with-now I won't purchase it again.Lots of volume5Tricia from Rancho Mirage CAFrom a little to a lot, this product can do it with no sticky mess. Great for touch ups the next day.Horrible product1Judy from Palm Desert CaRecommended by the hairdresser for thinning hair. It's awful. Makes your look even thinner and stiff. Awful awful awful.Crunchy Hair2Sav from HoustonMade my hair feel sticky and crunchy. Do not not recommend for fine hair.Horrible Product2Judy from Palm Desert, CaliforniaI asked the hairdresser who was helping me what I could use for my thinning hair from chemo and she recommended this product. It is not for thinning hair. It is sticky and stiff, and in order to use it you would need much more hair than I have now, if you have thick hair, I'm sure this would be fine but if it's thin or thinning, don't buy itAmazing!5Sb from HoustonPut all over while wetRedken Guts5Cinda from Atlanta, GeorgiaSo glad Guts is back in stock for purchaseIt is Ok..maybe repurchase not sure jury still out on Y/N3Michelle from New JerseyDecided to try a travel size and it works but just not sure have only used for about a week....it is easy to use not sticky and easy to brush through so those are all positives! Time will tellWould not purchase again2Ysela from Phoenix azBad smell leaves hair oily feeling did not workExcellent product5Barbara from Las Vegas, NVSo happy you had on the shelf this time so I did not have to order.Replaces Guts 10 apparently4Beth from Plains, PANot as good as the Guts10 just didn't do as wellIt holds well4Ru from MichiganI was looking for a product that would allow me to retain the style throughout my day. This works! Not a fan of the spray nozzle. It would be better with a typical mouse-type nozzle, then applied by hand like any mousse.Best voluntary for my healthy, straight hair5IloveGuts from Atlanta, GAMy hair is straight and I have only dyed it a few times in my life so its very healthy. Unfortunately this means it's absolutely flat and has NO volume or texture. My hair is fine, but i have a lot of it, which makes it heavy and prone to being flat. This is the BEST product I've found that will 1) give me volume, 2) adds texture, 3) helps my hair to hold style better, and 4) it extends my hair for another couple of days between washes. So many "pros" to this product, you know I keep this thang on me. I have been using it for years.I love this product!5June from Tucson, AZThis is the best mousse that I have ever used! It works perfect on my fine hair. It isn't too heavy and it gives my hair lots of body.Amazing!5Tiffanie from San DiegoGives me all the texture and volume I'm looking for and it's not sticky like other products!!I will buy this product again5Lisa from Sherman Oaks, Ca.I'm very pleased with this product . Cheaper products at the big box store must be full of water. You get what you pay for.Not for me1Marie from Springfield, MOI was hoping that this would be a good replacement for the discontinued Redken Thickening lotion 06 but it definitely wasn't. It left my hair feeling somewhat stiff and full of product even with using a small amount. I wish Redken would bring back the 06 lotion!The best I've tried so far.4Kathy from Naples FLStraight as a pin!I wouldn't bu this again1Tam from Southlake txSexy hair boost is betterI would not recommend this product1Tina from MinnesotaDoes not give any lift to my roots.