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Understand what’s inside your hair care

Clear, independent information about the ingredients on hair-care labels, read from the actual labels in our product library. Decide for yourself what belongs in your routine.

2,252ingredients analyzed
6,816products researched
171,139label placements read

What ingredients do

Each family lists the entries our library sees most often; the number beside a name is how many products list it.

Browse A–Z

Every published entry, with the number of products in our library that list it.

A · 159
B · 115
C · 365
D · 77
E · 73
F · 20
G · 69
H · 143
I · 42
J · 9
K · 6
L · 104
M · 112
N · 14
O · 79
P · 349
Q · 12
R · 79
S · 228
T · 100
U · 9
V · 41
W · 5
X · 6
Y · 13
Z · 17
# · 6

How the library works

  • An entry gets a page once it has a written description and appears in at least three researched products. Below that we leave the name as plain text on the product pages rather than publishing a page with nothing on it.
  • US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order. Position tells you about relative amount only above that line, and we never convert a position into a percentage.
  • We do not publish safety scores or hazard grades. Where a regulator has published a restriction or a use condition, we state it and cite it; otherwise we describe what the ingredient does and stop.
  • Nothing on these pages is paid placement, and we do not sell any of the products they link to.

Hair Care Consultation

A care plan made for your hair and goals, then follow-up questions and plan updates.

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  • Formula-based product picks
  • Routines for your lifestyle and preferences
  • Updates for weather, needs and goals

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