Headache: Many hair straigteners/ smoothing balms contain formaldehyde (formalin & methylene glycol) which can release formaldehyde in gas form when heated and cause headaches. However, I reviewed the ingredient list for Joico k-pak and did not see these specific chemicals listed. As you sensitive to smells? This has coconut aroma.
Answered 9/5/2020
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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