Yon-Ka Paris - Serum Vitamine C

Hero Ingredients: A clinical blend of stable antioxidants and cellular boosters.

20% Stable Vitamin C (Ascorbyl Tetraisopalmitate): An advanced, oil-soluble form of Vitamin C. It penetrates the skin deeply to boost collagen production and regulate melanin, which helps fade dark spots without oxidizing quickly in the bottle.

Native Turmeric Cells: Active plant cells that boost the synthesis of collagen and elastin, improving overall skin structure and firmness.

Native Pomegranate Cells: Regulate melanin production and improve cellular oxygenation to brighten the complexion.

Organic Apricot Kernel Oil: Rich in vitamins A and E, as well as Omegas 6 and 9, to deeply moisturize and comfort the skin, preventing the dryness often caused by active treatments.

Yon-Ka Quintessence & Sweet Orange Oil: The brand's signature purifying blend of Lavender, Geranium, Rosemary, Cypress, and Thyme essential oils.

Full Ingredient List:
Brassica Napus Extract, Ascorbyl Tetraisopalmitate, Prunus Armeniaca (Apricot) Kernel Oil, Citrus Aurantium Dulcis (Orange) Oil, Limonene, Helianthus Annuus (Sunflower) Seed Oil, Parfum/Fragrance, Rosmarinus Officinalis (Rosemary) Leaf Oil, Curcuma Longa (Turmeric) Callus Extract, Punica Granatum Leaf Cell Extract, Tocopheryl Acetate, Cupressus Sempervirens Oil, Lavandula Oil/Extract (Lavandula Angustifolia (Lavender) Oil), Thymus Vulgaris (Thyme) Flower/Leaf Oil, Pelargonium Graveolens Leaf Oil, Citral, Linalool, Geraniol, Citronellol, Coumarin, Linalyl Acetate, Camphor, Beta-Caryophyllene, Eucalyptus Globulus Oil, Terpineol, Geranyl Acetate, Terpinolene, Alpha-Terpinene.

This serum is formulated for all skin types, including oily skin (with a modified application amount). It is an excellent choice for individuals actively looking to target dark spots, hyperpigmentation, loss of firmness, and environmental aging. It is also gentle enough for use after cosmetic procedures like microneedling.

Brightens and Evens Skin Tone: Regulates melanin production to fade existing dark spots and prevent new ones from forming.

Firms and Plumps: Supports natural collagen and elastin synthesis.

Highly Stable Formula: Unlike traditional L-ascorbic acid serums that turn brown and lose potency quickly, this oil-soluble Vitamin C remains stable and effective.

Moisturizes While Treating: The apricot oil base ensures your skin barrier remains nourished, avoiding the tight, stinging sensation common with high-strength Vitamin C.

This serum can be used daily or as an intensive, short-term regimen. For best results, apply it to skin that is still slightly damp from your toner or post-shave wash to lock in hydration.

Daily Application (Normal to Dry Skin): Warm 6 to 8 drops in your hands every morning. Apply with light pressing motions onto a clean face and neck.

Daily Application (Oily Skin): Warm 4 drops in your hands and press lightly into the face.

Intensive Regimen: For accelerated results, apply the serum morning and evening for a period of 4 to 8 weeks.

Layering: It can be worn alone or applied immediately before your daily moisturizer.

This formula contains a potent concentration of active botanical essential oils (including Limonene, Linalool, and Citral) and Apricot Kernel Oil. If you have a known tree nut allergy or sensitivities to essential oils, consult the ingredient list carefully or perform a patch test prior to full application.

Standard Vitamin C serums (usually formulated with L-ascorbic acid) are notoriously unstable. They smell metallic, oxidize quickly, and often sting your face. Yon-Ka solved this by using Ascorbyl Tetraisopalmitate. It is a highly stable, oil-soluble derivative. Because your skin's outer layer is lipid-based (oil-based), this serum absorbs much more efficiently than water-based alternatives. You get the full brightening and collagen-boosting benefits of a 20% concentration without the aggressive irritation. If you have oily skin, remember to scale back to just 4 drops; the apricot oil base is nourishing, and a little goes a long way.

Citrus and Herbal: A natural, functional aroma driven by sweet orange oil and Yon-Ka's signature blend of lavender, rosemary, and thyme.

30 ml / 1.01 fl oz

Will a 20% concentration burn my skin?
It should not. Because this formula uses Ascorbyl Tetraisopalmitate rather than pure L-ascorbic acid, it is specifically designed for high tolerability. The addition of apricot kernel oil acts as a built-in buffer to comfort the skin during application.

Do I need to keep this in the refrigerator?
Unlike water-based Vitamin C serums that require refrigeration to slow down oxidation, this oil-soluble formula is highly stable at room temperature. Just store it in a cool, dry place away from direct sunlight.

Can I use this right after I shave?
Yes. The formula is gentle enough to be used post-procedure or post-shave, and the botanical oils will actually help soothe the skin barrier.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.