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FREQUENTLY ASKED QUESTIONS
What are keratin fibers and how do they work?
Are they resistant to sweat, wind or humidity?
Can I sleep with them?
Do they stain clothes or scalp?
Do they stain clothes or scalp?
What colors are available?
Does it have any side effects?
Why trust The Cosmetic Republic?
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Toxic-free
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Not tested on animals
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Natural ingredients
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Approved by experts
Ingredientes principales

- Regular price
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€21,99 €52,99 - Regular price
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€21,99 - Sale price
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€21,99 €52,99
- Regular price
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€13,99 - Regular price
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€13,99 - Sale price
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€13,99
- Regular price
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€18,99 - Regular price
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€18,99 - Sale price
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€18,99
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What our customers say
Daniel GarcíaI had a question about which product was best for my hair type, and they gave me great advice on Instagram. It's a pleasure to work with a brand that truly cares about helping you.
Sara FernándezI discovered The Cosmetic Republic a few months ago, and it's been a total game-changer for my hair. The order arrived quickly, everything was perfectly packaged, and with details that demonstrate customer care. I always recommend them!
Laura MartínezI've tried many brands, but The Cosmetic Republic products really make a difference. You can tell the quality from the first use. My favorite: the Stem Cell Shampoo—it's amazing!
Carmen LópezI started using keratin fibers on the recommendation of a friend and I'm delighted. They're easy to apply and the change is immediate. I now also use the Hair Exfoliant and my scalp feels healthier.
Paula RodriguezI love the brand: natural ingredients, no chemicals, and very good products. It's clear they care deeply about the product and customer service.