What is Squalane – and What Does Squalane Do for the Skin?

This hero ingredient may not be as universally known as hyaluronic acid or retinol, but the benefits of squalane are undeniable. Refined and lightweight, this versatile, highly effective moisturising agent is found in both skincare and makeup.

But what is squalane?

Lightweight yet deeply nourishing, this multitasking ingredient is valued for its ability to hydrate, protect, and restore. From moisturisers to foundations, squalane’s benefits for skin – including its ability to reinforce the skin moisture barrier, comfort stressed or sensitive skin, and more – make it a true staple across both skincare and makeup.

To help you understand squalane’s full potential, we’re breaking down what squalane is good for below – and why this refined emollient has become a modern beauty essential.

What is squalane?

Derived from squalene – an oil naturally produced by the body – squalane is the hydrogenated, stable form that enhances longevity and efficacy within formulations.

Because it mirrors oils already found in the skin, squalane is highly compatible with different skin types. Its featherlight texture absorbs quickly with no residue, making it ideal for layering with both skincare and makeup.

Known for its non-greasy, moisturising properties, squalane helps smooth the skin, boost radiance, and enhance the performance of products it’s paired with. Historically sourced from shark liver oil, squalane today is predominantly derived from plant-based sources such as olives and sugarcane.

What does squalane do for skin?

This refined emollient works on multiple levels: it strengthens the skin’s moisture barrier, seals in hydration, and helps visibly boost radiance. By mirroring the skin’s natural lipids, squalane restores balance and leaves the complexion feeling replenished and harmonious.

Squalane also possesses natural antioxidant properties that can help visibly diminish the appearance of fine lines and wrinkles. By supporting collagen production, it contributes to a firmer, smoother texture, allowing the skin to maintain a luminous, youthful complexion.

What’s more, because squalane offer support to all skin types – including dry, oily, mature, and sensitive – it can adapt seamlessly to the individual needs of your skin:

• For drier complexions, squalane restores skin hydration and comfort
• For oily or blemish-prone skin, squalane’s lightweight texture helps balance oils without clogging pores

Beyond skincare, squalane’s weightless consistency makes it a valuable addition to your makeup collection. It prevents dryness and patchiness, helping products blend smoothly and evenly across the skin. In formulas such as Make Me Blush Bold Blurring Blush, for example, squalane helps the powder sit comfortably on the skin, delivering a soft-focus, dewy makeup finish that gives you a fresh-looking glow – without feeling heavy.

What are the benefits of squalane?

From reinforcing the moisture barrier and enhancing radiance to delivering lightweight comfort for every skin type, this versatile ingredient adapts effortlessly to individual needs.

Read on to explore the top five benefits of squalane for skin.

1. Reinforces the skin moisture barrier

One of the key benefits of squalane is its ability to replicate the skin’s natural oils – reinforcing the skin moisture barrier and helping to prevent transepidermal water loss (TEWL). By strengthening this barrier, squalane helps the skin retain hydration and maintain resilience, leaving the complexion radiant and ready for the next step in your regime.

A strong skin moisture barrier also helps protect against environmental aggressors such as pollution and seasonal changes, maintaining your skin’s glow in all conditions.

For an added boost, our Or Rouge La Crème Essentielle Moisturiser harnesses the benefits of squalane alongside other nourishing actives to lock in hydration and deliver lasting comfort, ensuring skin feels replenished and re-energised.

2. Comforts sensitive or stressed skin

One of the key benefits of squalane is that, by preventing the water loss that heightens discomfort, the ingredient can help sensitive or stressed skin feel soothed and more resilient.

As an emollient (a substance that softens and smooths the skin), squalane is especially supportive for delicate or reactive complexions. Its gentle, lightweight properties also work to support the skin’s balance and reduce redness in allergy-prone skin.

3. Softens and smooths rough skin

Squalane works by filling in tiny gaps between skin cells, which helps to smooth uneven texture and restore softness to dry areas. This ability to refine the skin’s surface creates a supple base that allows makeup to glide onto the skin. This elegant emollient also nourishes the lips when formulated in products such as YSL Loveshine Candy Glow – a balm that melts into a luminous veil of colour while keeping lips hydrated and comfortable.

4. Diminishes the appearance of fine lines

By maintaining hydration, the benefits of squalane also include helping to diminish fine lines and wrinkles, supporting a complexion that appears smoother and more supple.

Unlike many other anti-ageing ingredients, which can feel heavy, squalane is exceptionally lightweight – absorbing quickly and leaving the skin comfortable.

5. Balances oil levels without clogging pores

Squalane is suitable for oily and blemish-prone skin, as it helps regulate natural oil production without congestion – keeping the complexion clear, fresh, and refined.

Because its structure closely resembles the skin’s own sebum, it delivers lightweight hydration that absorbs easily without leaving shine or residue. This makes it an effective option for maintaining balance and comfort in skin that is prone to excess oil or breakouts.

Now you’ve brushed up on the benefits of squalane, learn more about another hero ingredient with our guide to what niacinamide is – and what it does for your skin.