r/HaircareScience is a subreddit with 1.1M members. The most common kinds of discussions are advice requests, and the community frequently discusses hair, looking for a, shampoo, conditioner, and looking for, and they frequently recommend/review hairdryer, clarifying shampoo, and shampoo bars.
This subreddit aims to provide resources for achieving better hair quality through scientific research in trichology, physiology, chemistry, and biology
Popular Themes in r/HaircareScience
#1
Advice Requests
: "Are there any scientifically backed methods or ingredients proven to increase individual hair strand diameter/thickness over time?"
1 post
Popular Topics in r/HaircareScience
#1
Hair
: "Does prewetting your Hair prevent soaking in more water?"
57 posts
#2
Looking For A
37 posts
#3
Shampoo
26 posts
#4
Conditioner
18 posts
#5
Looking For
16 posts
#6
Hair Condition
: "Does a conditioner's viscosity have any relationship to its level of conditioning?"
10 posts
#7
Hate Hair
8 posts
#8
Struggling With
6 posts
#9
Struggling With Hair Care
5 posts
#10
Struggling With Hair Color
4 posts
Products Discussed in r/HaircareScience
Hairdryer
31 reviews
#1
BaByliss
5.0★ from 5 reviews
#2
T3
4.4★ from 5 reviews
#3
Panasonic
4.7★ from 3 reviews
Clarifying Shampoo
13 reviews
#1
Redken
4.5★ from 2 reviews
#2
Ouai
4.0★ from 1 review
#3
Suave
4.0★ from 1 review
Shampoo Bars
12 reviews
#1
Ethique
4.8★ from 4 reviews
#2
Lush
4.5★ from 2 reviews
#3
Plaine
3.0★ from 1 review
Flair Used in r/HaircareScience
#1
Question
: "Does a conditioner's viscosity have any relationship to its level of conditioning?"
12 posts
#2
Discussion
: "What does conditioning mean in hair science?"
1 post
Member Growth in r/HaircareScience
Yearly
+53k members(5.3%)
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About
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Last updated: October 11, 2026