Photograph the part. Do not double minoxidil because a straightener was hotter this week.
Heat above a fibre’s comfort zone denatures keratin in the shaft already on your head — a cosmetics-and-breakage story. Follicles under the scalp follow a different clock. A burn on the scalp is a skin injury; a telogen cohort after fever or crash diet is the AAD shedding timing. Patterned widening is still androgenetic until a dermatologist says otherwise. This is not medical advice.
Do not skip labelled minoxidil to “let heat rest” without a plan. Do not start finasteride from a salon receipt. Related files cover hats and traction; those are mechanical, not thermal. Ceramic versus titanium is marketing, not a Drug Facts chapter.
Blistered scalp, pus, or hair coming out with pain after a burn is dermatology, not a temperature essay. This is not medical advice.
Try the free self-check →Sources: AAD ↗
FAQ
Is a full brush after straightening telogen?
Often broken lengths. Telogen is a months-later clock. A patterned part still needs an exam.
Should I raise minoxidil after heat?
No. Follow the carton on intact dry scalp. Extra coats are irritation.
Does “heat protectant” treat baldness?
It is a cosmetics claim, not a licensed hair-loss drug.
Same as swimming-cap traction?
Different mechanical story. Heat is thermal plus breakage. Separate URL.
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⚠️ When to see a doctor — don’t self-treat
- Sudden patchy or circular bald spots
- Redness, scaling, pus, pain or itch (possible scarring alopecia — treat urgently)
- Broken hairs or rapid loss
- Loss with body-wide signs (weight loss, fatigue, cycle changes, acne, extra hair)
- Loss right after a new medication
- Any hair loss in a child