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scientifically-supported advice for great hair

43,206 subscribers a community for 4 years, 9 months

last post 11 days ago [+]

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This subreddit aims to provide resources for achieving better hair quality through scientific research in trichology, physiology, chemistry, and biology.

We welcome anyone who is looking for haircare advice, as well as anyone experienced and knowledgeable in the matter who would like to help others. Just remember to follow the rules below.

Subreddit Rules

  1. Source your facts - If you're making a statement of fact, please provide a source. Sources must be scientific research or articles that cite scientific sources. Unsourced comments are subject to removal.
    (read more about this rule here)
  2. For serious conditions, we are not a replacement for a licensed doctor
  3. All information links must be to primary research, or to sites that cite their sources.
  4. Posts/comments that advertise a specific product without any scientific discussion are considered spam and will be removed. Repeat posters will be banned.

Asking Advice?

  1. Read the articles in the sidebar first - they may answer your question
  2. If not, post a thread. Be as descriptive as possible about your hair's texture, thickness, density, length, and condition (damaged, oily, dry, etc.).
  3. Include details about your routine, such as washing and styling method, sources of hair stress, products used, and any special restrictions.
  4. Providing a close-up, naturally-lit photo can help us deduce what advice you need.

Get Special Flair!

  • If you make several well-cited comments, we may approach you about getting special flair to distinguish you as a knowledgable hair person. Gives you extra credibility!

  • Are you a professional stylist? Send us a modmail with proof of your occupation and we can give you special stylist flair.

  • If your posting history indicates that you are a company or product representative, we will assign you associated flair. You will also be subject to slightly stronger moderation, in accordance with rule 4.


Beginner Haircare Guide

Product Recommendations

Other Basic Care Guides

Info on Advanced Topics

Specific Ingredient Guide

HCS's Dictionary of Terms

Alphabetical List of All HCS Guides

More Information

International Journal of Trichology Archive

UK Institute of Trichologists

North American Hair Research Society

Chemical and Physical Behavior of Human Hair by Clarence R. Robbins

Hair and Haircare, ed. Dale H. Johnson

Cosmetics & Toiletries Magazine

Journal of Cosmetic Science Archive

World Trichology Society

Chemists' Corner

Natural Haven

Beauty Brains Blog

Brightest Bulb in the Box Blog

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