Lesson 1.2
Written by Dr. Bre Hayward
Learning Objective
Understand how ingredient lists are ordered, what that reveals about a formula, and how to connect labels back to the Ingredient Library.
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Narrated in a natural voice · prepared the first time you play
Ingredients appear in INCI — a standardized international naming system — in descending order of concentration, down to about one percent, after which the order is the manufacturer's choice. The first five ingredients usually tell you most of what a product is.
A botanical extract featured in the marketing may appear near the end of the list — present, but at low concentration. That's not automatically a bad thing: many extracts are effective at small amounts. But position is honest information about how much of a formula an ingredient really is.
You don't need to memorize chemistry — you need a good reference. When a label mentions an ingredient you don't know, look it up in the Ingredient Library to see what it is, why it's used and which products carry it. That habit is the fastest education in hair care there is.
Key Takeaways
Lists run in descending concentration, to about the 1% line
The first five ingredients tell you what a formula mostly is
Ingredient position is honest information — use it
Let the Ingredient Library do the remembering for you
Why This Matters
Label literacy protects you from marketing-first choices. A few minutes with a well-ordered list and a good reference tells you more than any advertisement.
Visual Guide · The Scalp Up Close
Magnified research photography of six scalp appearances. Hover or tap any image to reveal the biology underneath.
For cosmetic-science education only — not a diagnostic tool.

The Baseline
Balanced Scalp

Low Sebum · Barrier Lipids
Dry-Appearing Scalp

Sebaceous Gland Activity
Oily-Appearing Scalp

Keratinocyte Turnover
Visible Flaking

Deposition Chemistry
Product Buildup

Surface Reactivity
Sensitive-Appearing Scalp
Check Your Understanding
0 of 3 answered
1. Ingredient lists are ordered by…
2. The first five ingredients tell you…
3. A botanical extract far down the list…
Related Science
Related Ingredients
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2.1 · Oils & Butters: An Educated Comparison
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