Do I have to heat the keratin first, before applying them to my hair?
Md Ariful Islam
বিএসসি(সিএসই)
,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
No. You have to hold the extensions against your hair and then apply the heat. Heating the keratin on the hair creates a bond that attaches it. You then roll the extension to secure it.
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