Brand file

Olaplex on the ingredient apps

Two of Olaplex's best sellers, read on five public ingredient databases: every one got different verdicts from different databases.

SlipperSkin finding

Read on 21 and 23 October 2026, 2 of 2 Olaplex products got different clean-or-flagged verdicts from EWG Skin Deep, INCIdecoder, SkinSAFE and Skincarisma; their mean EWG hazard score was 4 and mean Skincarisma score 92.

Part of our study of how ingredient apps disagree, now 88 products from 48 brands. Every figure below links to the page it was read from.

How do the ingredient apps rate Olaplex?

They do not agree on any of them. EWG Skin Deep scores hazard from 1 to 10 (1 to 2 is its low band); INCIdecoder names the ingredients it rates "icky"; SkinSAFE rates freedom from common allergens (100 is its top); Skincarisma scores from EWG's ingredient ratings out of 100. 0 of 2 get SkinSAFE's top rating.

Olaplex: the verdict grid2 products, four databases, read 21 and 23 October 2026

Values in the cells are each database's own figure. Blush is flagged, glass is clean, dashed is not listed.

What does each database say, product by product?

Olaplex No. 3 Hair Perfector

Split verdict: 3 of 4 databases flag it. Fragrance-free on 1 of 5 databases. Read 23 October 2026.

EWG Skin Deep	4 of 10 (its listings range 4 to 6)Fair data, updated January 2025	source
INCIdecoder	rates Fragrance (Parfum), Butylphenyl Methylpropional, Methylchloroisothiazolinone, Methylisothiazolinone "icky"	source
SkinSAFE	82ingredients updated Feb 18, 2026	source
Skincarisma	97 of 100, "Excellent"	source
SkinSort	does not tag it fragrance-free	source

Olaplex No. 7 Bonding Oil

Split verdict: 3 of 4 databases flag it. Fragrance-free on 0 of 5 databases. Read 23 October 2026.

EWG Skin Deep	4 of 10Fair data, updated November 2023	source
INCIdecoder	rates Fragrance (Parfum), Hexyl Cinnamal, Limonene, Citral, Linalool, Citronellol "icky"	source
SkinSAFE	91ingredients updated Apr 23, 2023	source
Skincarisma	87 of 100, "Excellent"	source
SkinSort	does not tag it fragrance-free	source

Which listings may be out of date?

Formulas change and databases keep the list they were given. Where one database's ingredient list differs from the others on a clear marker (parabens or fragrance), or EWG labels its listing with a formulation year, we show it here as a question, not a finding: a majority of published lists is evidence, not proof of the current formula.

Olaplex No. 3 Hair Perfector: EWG Skin Deep omits fragrance (4 lists with / 1 without; EWG Skin Deep date January 2025)

Where to buy

Find the Olaplex products we checked on Amazon

Olaplex No. 3 Hair PerfectorOne of the products this page checked on the ingredient databases; read the full rows above before you buy.3 of 4 databases flag itView on Amazon → Olaplex No. 7 Bonding OilOne of the products this page checked on the ingredient databases; read the full rows above before you buy.3 of 4 databases flag itView on Amazon →

As an Amazon Associate I earn from qualifying purchases.

Where the law stands: FDA says cosmetic ingredients, other than colour additives, need no approval before sale (FDA's ingredient page); California bans a named list of intentionally added chemicals (Health and Safety Code section 108980); and the EU keeps its own prohibited and restricted annexes (Regulation 1223/2009 on EUR-Lex). Check any ingredient in our ingredient files.

More: the full study · which ingredient app answers which question · all 48 brand files

Other brand files: YSL Beauty · Saie · EltaMD · Maybelline