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Color Notes: Science

Every Color Notes guide filed under Science.

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Science

Hair Gloss vs. Toner: What LA Salons Get Wrong

Gloss and toner are used interchangeably at most LA salons, but the products and the outcomes are not always the same. The difference matters when you are trying to understand why your color looks different visit to visit. Here is the chemistry behind each and the right questions to ask before agreeing to an add-on service.

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Science

Hard Water and LA Sun Are Fading Your Hair Color: What to Do

LA tap water tests between 200 and 250 PPM hardness, and the UV index peaks at 11 for five months of the year. Both forces are attacking your color continuously, and most advice written for other climates does not account for them compounding. This covers the exact mechanism and what a product routine calibrated to LA conditions actually requires.

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More from Color Notes: Beyond Science

A few more guides worth your time while you are here.

Technique

Low-Maintenance Hair Color in Los Angeles: What It Means

"Low maintenance" is one of the most misused phrases in LA salons - a colorist who says your balayage will be low maintenance and one who means it are often different people. This is the honest service-by-service breakdown of what that claim actually requires before you commit to balayage, a root shadow, or a gloss series.

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Trends

How LA Hair Color Trends Influence the Rest of America

The looks that start in Beverly Hills and West Hollywood salons end up on Pinterest six months later and in mainstream salons a year after that. LA's color culture has an outsized influence on the industry relative to its geography. This covers how that pipeline works, who drives it, and why certain techniques become global trends.

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Compare the LA Studios Behind Our Science Guides

Studios ranked on the criteria that actually matter. Direct links, no affiliate tracking.

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