Hair questions split between practical styling communities and a science-oriented haircare room. Neither replaces a dermatologist for medical scalp conditions or hair-loss diagnosis.
Where to ask
Best for: Everyday hair and beauty questions with photos or a clear description of your hair history.
Why it fits: Its public description: “Welcome to the /r/hair community! This community is all about hair and beauty.”
Members in our directory: 4.5M
Rules to know before posting:
- Be kind and supportive; no bullying, harassment, fetishism or unsolicited sexual comments.
- Advice must be requested and constructive; include photos or a detailed description when asking.
- No NSFW content.
- No low-effort posts that only ask for a haircut name or basic color facts better answered by a search or stylist.
- No spam, self-promotion or ads.
- No doxxing or sharing personal information.
Read r/Hair’s current rules on Reddit
Best for: Science-backed hair-quality questions; personal product advice usually belongs in the weekly advice thread.
Why it fits: Its public description: “This subreddit aims to provide resources for achieving better hair quality through scientific research in trichology, physiology, chemistry, and biology.”
Members in our directory: 1.1M
Rules to know before posting:
- Source factual claims; do not frame anecdotes as settled science.
- No medical advice or diagnosis requests — see a professional for medical conditions.
- Post personal advice or recommendation requests in the weekly Haircare Advice megathread.
- No repetitive posts; search first.
- No advertising, hair-loss advice threads, DIY formulation, or water-quality diagnosis over Reddit.
Read r/HaircareScience’s current rules on Reddit
Before you post
- Say porosity, current routine and what you already tried before asking for product ideas.
- Hair-loss and balding advice is steered to medical care and dedicated communities — not general hair rooms.
- Skincare-of-the-face questions belong on the skincare where-to-post page.
Related on SubMouse
Rule summaries are paraphrased from each community’s published rules (public archive copy retrieved 7 November 2026; original snapshot date unavailable). Current rules may differ — check the community’s rules before posting. A good fit does not guarantee a reply.