The Ordinary Ascorbyl Tetraisopalmitate 20% Vitamin C Oil — 1 fl oz, Lightweight Hydrating Brightener

The Ordinary Ascorbyl Tetraisopalmitate Solution 20% in Vitamin F is a lightweight, oil-based vitamin C treatment that brightens uneven tone while helping support skin hydration with Omega 3 and 6.

This lightweight oil blends an oil-soluble vitamin C derivative with vitamin F (a mix of Omega 3 and Omega 6 fatty acids) to deliver antioxidant support and hydration without the intensity of some water-based vitamin C serums. The formula is designed to convert into active vitamin C after application, which can reduce irritation for sensitive or dry skin types while targeting dullness and uneven tone.

How will this oil affect uneven skin tone and brightness?

Ascorbyl tetraisopalmitate is an oil-friendly vitamin C derivative that penetrates the skin and then converts into active vitamin C, helping to improve skin radiance and evenness. Regular use can reduce the appearance of dullness and create a more uniform complexion when combined with sun protection and a consistent routine.

• 20% concentration of the ascorbyl tetraisopalmitate derivative for targeted brightening.
• Oil-soluble delivery aids absorption into lipid-rich layers of the skin.
• Suitable for layering under moisturizers and makeup once absorbed.

Will this product hydrate skin and support the skin barrier?

The formula includes vitamin F (Omega 3 and Omega 6 fatty acids), which helps reinforce the skin’s natural moisture barrier and reduce transepidermal water loss. Because it’s oil-based, it’s especially helpful for dry or moisture-compromised skin that needs both antioxidant support and conditioning lipids.

• Vitamin F supplies essential fatty acids to help maintain barrier function.
• Lightweight oil texture seals in moisture without feeling heavy or greasy for many users.
• Best used alongside a humectant and emollient moisturizer for full hydration benefits.

How should I use this oil safely in my routine?

Apply a few drops to clean, dry skin in the morning and/or evening, avoiding the immediate eye contour. As with all vitamin C products, use broad-spectrum sunscreen during daytime use to protect newly treated skin and enhance results.

• Use 2–4 drops on the face after cleansing and before heavier creams.
• Avoid contact with eyes; discontinue if irritation occurs.
• Always follow with SPF in the morning to protect treated skin.

Will I experience irritation compared with traditional vitamin C serums?

Because the active ingredient is an oil-soluble derivative that converts to vitamin C after application, it tends to be gentler than some direct L-ascorbic acid serums. That said, individual sensitivity varies; start with once-daily use or patch testing if you have very reactive skin.

• Formulated to lower irritation potential versus some water-based vitamin C forms.
• Patch test under the jawline or inside the wrist before first full-face use.
• Introduce gradually into your routine if using other active ingredients.

Who is this for: This oil is aimed at people seeking a conditioning vitamin C treatment that brightens and helps even skin tone while also supporting barrier hydration. It suits dry to combination skin types, those who find traditional vitamin C serums irritating, and anyone wanting antioxidant support combined with essential fatty acids. Avoid if you prefer water-based textures or if you have an allergy to any listed ingredients; consult ingredient labels and perform a patch test before widespread use.

Ingredients

Coconut Alkanes, Tetrahexyldecyl Ascorbate, Ethyl Linoleate, Coco-Caprylate/Caprate, Simmondsia Chinensis (Jojoba) Seed Oil, Solanum Lycopersicum (Tomato) Fruit Extract, Squalane.