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EU cosmetic ingredients, restrictions and safety
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Ingredient function 214 ingredients · Page 1/5

BUFFERING

Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.

214 ingredients in the EU CosIng inventory carry the BUFFERING function designation.

Browse annex entries for BUFFERINGAll functions

Ingredients with the BUFFERING function

AMMONIA

31839

Ammonia, anhydrous

CAS 7664-41-7III/4

BABASSU ACID

83092

Babassu Acid is a mixture of fatty acids derived from Orbignya Oleifera Seed Oil

BAKUHAN

54801

Bakuhan is a mineral consisting chiefly of calcium, magnesium, sodium and potassium silicates

CALCIUM CITRATE

32319

1,2,3-Propanetricarboxylic acid, 2-hydroxy-, calcium salt (2:3)

CAS 813-94-5

CITRIC ACID

32858

2-Hydroxy-1,2,3-propanetricarboxylic acid

CAS 77-92-9 / 5949-29-1V/59

How the BUFFERING function is used in CosIng

The BUFFERING function is assigned by the European Commission in the CosIng ingredient inventory. This page currently lists 214 ingredients carrying that function label in the dataset, which helps you move from a functional claim to the exact ingredients that use it.

Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.

Function assignments come from official EU CosIng data. They describe intended cosmetic use, but they do not replace regulatory review of each linked ingredient and any annex records tied to it.

Frequently asked questions

The BUFFERING function, as defined in the EU CosIng database, describes the role this group of ingredients plays in a cosmetic formulation. There are currently 214 ingredients in the EU CosIng inventory assigned this function. Function labels are standardised terms used in Product Information Files (PIF) and ingredient declarations.

Yes. An ingredient's function in the CosIng inventory is independent of its regulatory status. An ingredient with the BUFFERING function may also be listed in Annex II (prohibited), Annex III (restricted), or other annexes. Always check each ingredient's annex records for applicable conditions before formulating.

Ingredient functions are documented in the Product Information File (PIF) as part of the cosmetic product safety assessment. They describe the intended role of each ingredient in the formulation and support the safety assessor's review. Functions do not appear on consumer-facing product labels, which list only INCI names.

Use the INCI Checker to paste your full ingredient list and screen it against all Annex II–VI restrictions, CMR classifications and allergen flags from the EU CosIng database.
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Tools & next steps

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Scan a full INCI list, then review which matched ingredients are tagged with the BUFFERING function.

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Browse all functions

See the full list of cosmetic ingredient function categories in the EU CosIng inventory.

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Search annex entries for BUFFERING

Search annex entries whose names or descriptions overlap with the BUFFERING function keyword.

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