Study case: Squalane, the skin-familiar lipid

Squalane is one of the quiet workhorses of skincare: lightweight, familiar to skin, and rarely the headline. This study case looks at what is actually known about it, and where the evidence is thinner than the marketing around it.

What it is

Squalane is the hydrogenated, more stable form of squalene, a lipid your skin makes on its own. A 2009 review in Molecules reports that squalene makes up about 13% of human sebum. Huang, Lin and Fang, 2009.

Ingredient maker SOPHIM describes making squalane from olive-derived squalene through hydrogenation, which makes the material more stable, and describes its use in cosmetics as an emollient that contributes softness and a smooth feel. SOPHIM ingredient information. That is one supplier’s material; it does not tell you where any other formula’s squalane comes from.

HV1 + Peptides contains 5% squalane.

What the research looked at

The Huang review gathers research on squalene and related compounds for cosmetic dermatology. Among the findings it cites: in rat and human skin irritated with sodium lauryl sulfate, squalene supplementation reversed the rise in transepidermal water loss, a marker of barrier disruption.

On safety, the Cosmetic Ingredient Review Expert Panel concluded in 1982 that squalane and squalene are safe as cosmetic ingredients in the present practices of use and concentration. CIR final report, 1982.

What it does not tell you

• The review is mostly about squalene. Squalane is the hydrogenated form, and the review does not evaluate it directly.
• Much of the evidence it collects comes from animal and laboratory studies. The authors themselves note that few human trials exist and that extrapolating to people is uncertain.
• None of it tests HV1 + Peptides.

Its role in HV1

We include squalane as an emollient: it helps skin feel soft and smooth and gives the serum a light, non-greasy finish. It does a different job from hyaluronic acid, which attracts water. Pairing an emollient with a humectant is a common approach in moisturizing products, and it is why a formula can have several moisturizing ingredients without repeating itself.

We do not claim squalane repairs, treats or reverses anything. It is there for how the formula feels and wears.

How to read it

Treat “skin-identical” and “natural” as invitations to ask questions, not answers. FDA has not defined “natural” for cosmetic labeling. FDA fact sheet. As with any new product, patch test first.

This article describes ingredient-level research for education. It is not a claim about the results of HV1 + Peptides, and individual results vary. These statements have not been evaluated by the FDA.