Question 1

What is Sodium Lauroyl Lactylate and what does it do in sunscreen?

Accepted Answer

Sodium Lauroyl Lactylate is a mild, naturally derived emulsifier and surfactant made from lauric acid and lactic acid. In a sunscreen it helps blend oil and water into a stable cream while conditioning the skin surface for a smooth feel. It is valued for being gentle and skin-friendly.

Question 2

Is Sodium Lauroyl Lactylate safe?

Accepted Answer

Yes, for the vast majority of people. It is built from lauric acid and lactic acid, two well-known and benign building blocks, and lactylate emulsifiers have a long, uncontroversial history in both food and cosmetics. At the low levels used in sunscreen it is gentle and well tolerated. Anyone with a specific known sensitivity can patch test first.

Question 3

Does Sodium Lauroyl Lactylate clog pores?

Accepted Answer

Generally no. It is a lightweight emulsifier used in small amounts, not a rich oil or wax, and it is not flagged as comedogenic in our data. Its job is to hold the formula together rather than to sit heavily on skin. If you are breaking out, the heavier emollients elsewhere in a product are more likely the cause.

Question 4

Is Sodium Lauroyl Lactylate fungal-acne safe?

Accepted Answer

Mostly yes, with a small caveat. It is built on a fatty (lauryl) part, and the malassezia yeast linked to fungal acne can use some fatty material, so the strictest fungal-acne routines may avoid it. In practice it is used in tiny amounts as an emulsifier rather than as a rich oil, so it is a low-level concern at most. For everyone who is not fungal-acne-prone it is simply a gentle emulsifier and not a safety issue.

Question 5

Does Sodium Lauroyl Lactylate feed fungal acne (malassezia)?

Accepted Answer

It can in a minor way. Because it carries a fatty acid component, the malassezia yeast behind fungal acne could use part of it, so on our flags it counts as a potential feeder. The amounts in a finished sunscreen are small, so many fungal-acne-prone people tolerate it, but the most cautious may choose to skip it. This is one specific concern for that group only and harmless for everyone else.

Question 6

What is Sodium Lauroyl Lactylate on an ingredient list (INCI)?

Accepted Answer

On the label it appears under its INCI name, Sodium Lauroyl Lactylate. It is the sodium salt of a lactylate made from lauric acid (often from coconut or palm) and lactic acid. It usually sits in the middle of an ingredient list alongside the other emulsifiers.

Sodium Lauroyl Lactylate

What Sodium Lauroyl Lactylate is & what it does