Heat Protective Hair Spray Schwarzkopf Professional Osis+ Flatliner Heat Protection Spray

I'm not sure about its effectiveness in terms of protection, but it doesn't weigh down my hair. It has a pleasant scent and it styles really well.

I'm not sure if it works or not, but I don't feel it on my hair. I've bought it multiple times before, and it doesn't have any scent.

They sent a defective spray. The spray has a lock. If you remove it, the dispenser can be pressed, but the product does not come out and does not spray at all.

I have uncolored hair and have been consistently using this product for over a year, and it suits me well! However, I don't expect any special care effect from the heat protection.

Great straightener! It can weigh down and slightly clump fine, uncolored hair. However, overall it is acceptable, though the price is definitely inflated!

This product performs its functions perfectly, with a subtle fragrance that is not overpowering. It does not leave any stickiness or weigh down the hair. I only use a hairdryer, so it is a great fit for me.

+ It performs its function well.
+ It has a neutral scent.
- It is expensive.
- It is not economical to use.
- Any creamy heat protectant will work better.
- Sometimes the handle breaks.

The spray does not fulfill what is described in the description! It feels sticky, and it is very difficult to straighten hair after using it. My hair is only slightly wavy, and in the morning after straightening, it becomes even more curly than it was before. The hair feels like straw after using the spray and it doesn't provide any shine because it dries it out too much. I will not buy it again and I do not recommend it.

This is truly the coolest thermal protection product. I am impressed. It's worth the money. And this lightweight fixation is exactly what I needed. No need to use a bunch of products to achieve the same result.

So far, this is the best heat protectant. It also provides great hold - my curls stay in place for 2 days effortlessly. The metal canister is a nice touch, and the spray nozzle works well.

This product is excellent! It seems to even have a straightening effect. The spray bottle is convenient. I highly recommend it.

5 stars! My porous hair becomes smooth, like after using a flat iron. It doesn't weigh it down. I only regret not using this product earlier.

Everything seems fine, but I was expecting more. Overall, I recommend it.

I purchased this spray based on high ratings and recommendations from hairdressers. When applied to damp or dry hair, even in small amounts, the hair becomes straw-like. When styling with a styler or brush, the hair becomes fluffy and unruly, not smooth. I tested the liquid itself for heat protection, and it works wonderfully. The scent is neutral and not noticeable on the hair.

Amazing product, it truly protects the hair without weighing it down or making it sticky. The scent is practically nonexistent, which is important to me as I don't want to feel the chemical smell. It sprays evenly. I bought it based on the recommendation of my professional hairdresser, who knows their stuff. Being a blonde, I am very careful with my hair care routine. The delivery, as always, was prompt and courteous.

I will repeat it for the fifth time. I have porous thick hair, to which it provides smoothness and a well-groomed appearance. For me, it is the best.

Before this, I had a thermal protective lotion from CHI. If we compare Osis with CHI, Osis is absolutely useless. It even stinks.

I bought it based on the recommendation of a hairdresser, but I didn't see any effect on my hair.

Great product! I have purchased it multiple times and I am always satisfied with the quality. I use it before blow-drying with a straightener. It leaves my hair extremely smooth and shiny. I highly recommend it!

The product is decent and performs its function well. However, it turns soft hair into stiff hair, which becomes very tangled, unruly, and difficult to style. It works better on already stiff hair. However, I will not purchase it again.

I really like this heat protectant, especially considering its price.

Absolutely pointless, just water. My hair looked like icicles after using it, I've never had such awful hair after blow-drying with this heat protectant. I used it twice and threw it away. I switched to the Real Shea heat protectant, which is amazing. My hair brushes through perfectly, shines, has volume, and it seems to dry faster as well.

I am extremely satisfied with this product. I have been using it for several years now.

I apply it as a final step before straightening my hair. It perfectly smooths out my hair in this case. My hair looks shiny.

I definitely recommend it.

I tried it out and the ends of my hair became dry. It's not surprising, as the first ingredients are alcohol and propylene glycol. These things can be detrimental to the hair (the formula itself will be lighter than just some oil), so it will work fine for thick hair but dry out thin hair. Although the manufacturers actually advise the opposite.

Nothing special, like all the others.
I will continue my search.

The spray is excellent and does its job exceptionally well.

I ordered this heat protectant for the first time based on my friend's recommendation. I'm not sure about the protective effect yet, but I can assure you that my hair feels amazing in my hands. It is smooth, shiny, and perfectly straightened. I definitely don't regret buying it.

There is a fixing effect, but it is not strong.
I have porous hair and it remained fluffy before and after using the spray.
This is despite the fact that I always brush it to make it smooth.

I don't understand why this heat protectant is always recommended, as there is nothing special about it. There are no negatives or positives. Therefore, 3 stars.

I really liked it.

I purchased it for 110 UAH on a website in Prague. There is absolutely no smell to it. Plus, it is very convenient.

"The best heat protection, the jar is almost empty, I want to get another one soon."

I really liked the heat protectant, and I found out from a friend who is a hairstylist that the ingredients are good. Normally, my hair gets tangled after washing, but after using this spray, it is easy to comb through!

Favorite heat protectant. It doesn't weigh down the hair, and most importantly, it protects it from damage. Also, personally for me, a plus is that I noticed that without it, my hair gets static from wearing a hat. With it, everything is fine.

I have used this product for quite a long time, and I have used 3-4 bottles of it, but unfortunately, I haven't seen any results. I used it for regular blow-drying and mainly for my hair ends. As a result, my ends started splitting even more and breaking off. I also use masks and conditioners, trying to figure out the reason, but for now, I can only give this product one star because, for the price I paid, it has had zero effect.

After using this product, my hair became drier. I will not buy it again.

I couldn't open it at first. Thank you to the makeup staff who called me after my question about how to activate it and explained what to do. Following their suggested instructions, it worked out well. The thermal spray is excellent to use! It is unclear whether it provides thermal protection or not, but I will keep an eye on my hair.

The best heat protectant, but keep in mind that it is specifically a heat protectant and not a hair care product.

Average quality heat protection. It seems to do its job, but it's not impressive. I won't buy it again.

Great heat protection, hair feels smooth and shiny, looks hydrated.

I bought it as a gift, and it was delivered from the EU. When I transferred the product from its original packaging to the gift bag, almost everything spilled. I called customer service and they said that the packaging arrived intact, so it's not their problem. I don't understand how they can package it like this. Thank you for ruining my mood and wasting 300 UAH.

I have been buying this product multiple times, and it provides excellent heat protection. After using it, my hair becomes shiny and doesn't get frizzy.

The effect is really cool! After using it, my hair becomes smooth and doesn't get frizzy. I really like it!

I have ordered this product for the second time now. It makes my hair easy to comb through, especially when I use it before blow drying. Overall, this spray does a great job in fulfilling its purpose.

Well, it's like this... I bought it based on my evening hairstyle course instructor's recommendation. I tried it on myself, but I don't see any noticeable effect. I agree that if you spray it on damp hair, they become difficult to comb afterwards. I'm not sure if I will buy it again.

I really liked using it after washing on damp hair.

This product was recommended to me by my hairdresser. The best thing about it is that it prevents my hair from becoming frizzy. I am very satisfied with it. The delivery was flawless, as always! Thank you!

The hair looks very shiny and seems to have become thicker after using this product. The smell is not the best, but at least it smells natural)). If you spray it on wet hair, it can be a bit difficult to comb through, worse than with other sprays, but once it dries, it becomes very easy. I recommend it.

Usually, products from this brand have a very pleasant scent. (There is a fragrance.) There is no protection against tampering, and when you apply it to your hair, it doesn't provide any stickiness or other effects (absolutely none). I am very disappointed. The order was coming from the EU.

Best heat protection. The smell remains the same as before and so does the effect.

I have been using this product for a year, and I will continue using it in the future! My hair has noticeably improved with this heat protection. I even used it during the summer when I didn't use a hairdryer or curling iron. I absolutely love this spray! The price is definitely worth the quality, 100%!