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★★★★★ 4
Keratin Hair Serum – Heat Protection
Scent: Keratin, Size: 2 Fl Oz (Pack of 1)
This keratin hair serum has a lightweight texture that spread easily through damp hair without feeling greasy. During heat styling, it seemed to smooth strands and left hair looking shinier compared with un-treated sections. The applicator made it simple to distribute the serum from roots to ends without excess product buildup.
In terms of protection, my hair appeared to handle blow-drying and flat-ironing without visible dryness or frizz afterward. It also rinsed out cleanly and did not make hair feel weighed down, which helped keep my overall styling routine manageable.
On the downside, the scent was noticeable and may not suit people who prefer very mild or fragrance-free products. Additionally, while my hair looked smoother, the results were not as dramatic as some higher-end serums I’ve used before.
Overall, this keratin heat-protective serum offers a balance of smoothness and ease of use for routine styling, and it could be a good everyday choice for those looking to add a bit of polish before using heat tools.
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Reviewed in the United States on January 28, 2026
