This review contains affiliate links.
It is not a sponsored review and is my true and honest opinion and results of the product.
Today I am going to share my review on the new formula of the OST Pure Vitamin C 21.5 Advanced Serum. The upgrade of the OST Pure Vitamin C 20 Serum. You can view my previous review of the old formula by clicking here.
Serums that contain high concentrates of vitamin C aren’t always the most pleasant to use. The number 1 issue being the texture of the serum being too sticky. Overly sticky serums block the absorption of additional layered skincare products, limiting their effects and overall be uncomfortable and unpleasant to use.
You can tell how sticky a serum may be by seeing how thick the consistency of it is. As shown above, the OST C 21.5 Serum travels at a medium rate down the surface of my skin. Just slow enough to give me enough time to click the shuttle button on my camera before the serum disappeared down my skin.
The second way to compare which product is more sticky is to apply any type of powder substance overtop of the applied serum.
In the above photo, I placed sugar over OST C 21.5 Serum. I used 3 drops of serum on the skin before hand. After shaking off the sugar, you can see almost all the sugar was easily removed from the skin where the OST C 21.5 Serum was applied.
Let’s test and see how the OST C 21.5 Serum effected my acne scars over the time span of 10 days of use.
The serum applied smoothly and absorbed quickly into the skin with a slight sticky texture that faded after 1 minute. When first applied, I felt a slight tingling and burning sensation. After a few seconds, the sensation went away. I then waiting 15 minutes before applying any additional product to make sure the serum was fully absorbing into my skin without being diluted.
Over the time span of 10 days, I did not experience any skin irritations. No hives, no itching, no burning and no redness. My skin actually improved very quickly in only 10 days of use. The redness in my cheeks improved, my pores appeared tighter and my acne scars started to heal very quickly!
I was very shocked at how quickly this serum worked for me in comparison to the old OST C 20 Vitamin C formula.
What makes me the happiest about this new formula, is the small amount of ingredients used. Making the OST C 21.5 Advanced Serum much less sticky and less irritating to anyone with sensitive skin.
Based on my personal results with the OST C 21.5 Advanced serum, I would choose the OST C 21.5 Serum over the old OST C 20 Serum as it did not cause me any irritations and provided my skin with the results I was hoping for out of an vitamin C Serum.
The new OST Vitamin C 21.5 Advanced Serum is something I highly recommend to include in anyones skincare routine who is looking for a Vitamin C Serum that is less likely to cause irritation and will improve the appearance of post acne scars and other skin pigmentation concerns.
OST Pure Vitamin C 21.5 Advanced Serum
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