Esteli Sí Vitamin C Antioxidant Serum
Esteli Vitamin C Serum
Esteli Vitamin C Serum
Esteli Vitamin C Serum
Esteli Vitamin C Serum
Esteli Sí Vitamin C Antioxidant Serum
Esteli Sí Vitamin C Antioxidant Serum
Esteli Vitamin C Serum
Esteli Vitamin C Serum
Esteli Vitamin C Serum
Esteli Vitamin C Serum
Esteli Sí Vitamin C Antioxidant Serum

Sí Vitamine C Sérum Antioxydant

VITAMIN C · SQUALANE · RADIANCE

A gentle oil-based vitamin C serum for skin that feels dull, dry, or uneven.

$195.00

1 fl oz / 30 ml

Made with oil-soluble vitamin C, sugarcane-derived squalane, rosehip CO₂, golden jojoba, rose, and geranium, this silky serum supports a brighter, smoother-looking complexion without the sharp feel of traditional water-based vitamin C.

Lightweight and nourishing, it leaves skin feeling soft, conditioned, and cared for — ideal for daily use on skin that wants radiance with comfort.

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Oil-soluble vitamin C · No synthetic fragrance · Small-batch made in coastal Virginia · Leaping Bunny Certified

DETAILS

A gentle, oil-based vitamin C serum made with tetrahexyldecyl ascorbate, sugarcane-derived squalane, rosehip CO₂, golden jojoba, rose, and geranium.

Unlike traditional water-based vitamin C formulas, this silky oil serum was created to feel nourishing, comfortable, and easy to use. It supports brighter-looking, more even-looking skin over time while helping skin feel soft, conditioned, and replenished.

Designed to support skin that feels dull, dry, uneven, or in need of radiance.

Oil-soluble vitamin C helps support a brighter-looking, more even-looking complexion over time, while squalane, rosehip CO₂, golden jojoba, and vitamin E help soften, condition, and replenish the feel of skin.

Lightweight and nourishing, it absorbs beautifully without the sharp feel often associated with traditional vitamin C serums.

Tetrahexyldecyl Ascorbate
An oil-soluble form of vitamin C chosen for its stability and elegant feel in an oil-based serum. Included at a considered 10% concentration to support brighter-looking, more even-looking skin over time.

Sugarcane-Derived Squalane
A lightweight, silky emollient that helps soften the feel of skin and support moisture without heaviness. It gives the formula its smooth, fast-absorbing finish.

Rosehip CO₂ Extract
A concentrated botanical extract rich in naturally occurring fatty acids and antioxidants. Chosen to support skin that feels dry, dull, or depleted while adding a golden, replenishing quality to the formula.

Golden Jojoba Oil
A lightweight botanical oil with a natural affinity for the skin. It helps condition, soften, and support a balanced-feeling finish.

Rose + Geranium
Natural aromatic botanicals that bring a soft floral character to the formula while supporting the sensory ritual. Delicate, warm, and close to the skin.

Use morning or evening after cleansing and misting.

Apply 2–3 drops to fingertips and gently press into damp skin, focusing on areas that feel dry, dull, or in need of radiance. Allow the oil to absorb fully before layering additional products.

For a more replenishing evening ritual, follow with a few drops of Oro Rosa Face Oil, especially when skin feels dry or wants extra softness.

Use consistently over time. This is a gentle, botanical vitamin C ritual designed for gradual visible support, not a harsh overnight treatment.

Very light, soft, and botanical.

The natural scent comes from rose, geranium, rosehip CO₂, and the golden plant oils in the formula. It is delicate and close to the skin rather than perfume-like.

Because the aromatic materials and botanical extracts are natural, the scent may vary slightly from batch to batch. Some batches feel lightly floral and green; one batch even reminded customers of watermelon. Overall, the scent remains subtle, fresh, and easy to wear.

INGREDIENTS / INCI

Squalane, Rosa Canina Fruit Extract, Simmondsia Chinensis Seed Oil, Tetrahexyldecyl Ascorbate, Tocopherol, Rosa Damascena Flower Oil, Pelargonium Graveolens Flower Oil

SELECTED ORGANIC BOTANICALS

This formula includes certified organic botanicals, including rosehip CO₂ extract, golden jojoba oil, and geranium.

Its active vitamin C support comes from tetrahexyldecyl ascorbate, an oil-soluble form of vitamin C chosen for its stability, skin-friendly feel, and compatibility with an oil-based serum.

Sugarcane-derived squalane gives the formula its silky, lightweight glide, while rosehip CO₂, golden jojoba, vitamin E, rose, and geranium create a nourishing botanical serum designed to support brighter-looking, more even-looking skin over time.

This formula is made with 10% tetrahexyldecyl ascorbate, an oil-soluble form of vitamin C chosen for its stability, skin-friendly feel, and compatibility with an oil-based serum.

Natural vitamin C rituals work best with consistency. Use daily or several times weekly, depending on your skin, and allow time for the skin to respond.

Because this formula contains vivid botanical extracts and natural plant oils, the color and scent may vary slightly from batch to batch. Store away from direct heat and light, and avoid contact with eyes. For external use only. Discontinue use if irritation occurs.

A Gentler Way to Vitamin C

This serum began with a question I heard often at markets: Do you make a vitamin C?

I understood why people were asking. Vitamin C has become one of the most recognized ingredients in skincare, but many formulas can feel sharp, drying, or difficult to use. I wanted to create something different — a vitamin C ritual that felt gentle, nourishing, and aligned with the way I formulate.

The formula is built around tetrahexyldecyl ascorbate, an oil-soluble form of vitamin C chosen for its stability and elegant feel in an oil-based serum. I paired it with sugarcane-derived squalane, rosehip CO₂, golden jojoba, vitamin E, rose, and geranium to create a silky botanical serum that supports brighter-looking, more even-looking skin over time.

It is not a harsh overnight treatment. It is a daily ritual for radiance with comfort — soft, golden, and made to become part of a simple face oil routine.

SÍ Vitamin C Serum golden oil dropper and green glass bottle in sunlight

Inside the Formula

A considered oil-based vitamin C formula, built around stable radiance support, silky moisture, and botanical nourishment. Each ingredient was chosen for how it contributes to the skin feel, the finish, and the gradual brightening ritual over time.

Golden oil dropper for SÍ Vitamin C Serum with oil-soluble vitamin C

Tetrahexyldecyl Ascorbate

An oil-soluble form of vitamin C chosen for its stability and elegant feel in an oil-based serum. Included at a considered 10% concentration to support brighter-looking, more even-looking skin over time.

Sugarcane-Derived Squalane

A silky, lightweight emollient that softens the feel of skin without heaviness. It gives the formula its smooth glide and helps create a comfortable, fast-absorbing finish.

Rosehip CO₂ extract, a key botanical ingredient in Oro Rosa Supercriticals Face Oil

Rosehip CO₂ Extract

A concentrated botanical extract rich in naturally occurring fatty acids and antioxidants. Chosen to support skin that feels dry, dull, or depleted, it brings a golden, replenishing quality to the formula.

Rose hydrosol ingredient for Rosa Jamaica Hydrating Face Mist

Delicate, floral, and soft, rose brings a gentle aromatic warmth to the formula. Used in a small amount, it rounds the scent and adds a quiet sensory note to the daily ritual.

BEST FOR

Skin that looks dull, feels dry, or wants a gentle daily ritual for brighter-looking, more even-looking radiance over time.

Apply 2–3 drops to damp skin after cleansing and misting. Use on the face, neck, or upper chest where skin wants softness, nourishment, and a smoother-looking glow.

GOOD TO KNOW

This formula is made with 10% tetrahexyldecyl ascorbate, an oil-soluble form of vitamin C chosen for its stability, skin-friendly feel, and compatibility with an oil-based serum.

Rather than using a harsher water-based vitamin C approach, this serum was designed to support brighter-looking, more even-looking skin over time while keeping the ritual gentle, nourishing, and comfortable.

QUESTIONS

This formula uses tetrahexyldecyl ascorbate, an oil-soluble form of vitamin C chosen for its stability, elegant feel, and compatibility with an oil-based serum.

An oil-based serum allows vitamin C to be paired with nourishing botanical ingredients like squalane, rosehip CO₂, golden jojoba, and vitamin E. The result feels silky, conditioning, and comfortable on the skin rather than sharp or drying.

Yes — this formula uses a considered 10% concentration of tetrahexyldecyl ascorbate. Rather than chasing a higher number, it was formulated to support brighter-looking, more even-looking skin over time while keeping the ritual gentle and nourishing.

Use morning or evening after cleansing and misting. Apply 2–3 drops to damp skin and gently press in.

When used during the day, follow with your usual sun protection as part of a complete daytime skincare routine.

Yes. Mist first, then press the serum into damp skin. The mist helps create a soft, hydrated base before applying oil-based skincare.

Yes. For extra nourishment, mix 1–2 drops with a few drops of Oro Rosa in your palm, then press into damp skin. This creates a richer, more replenishing face oil ritual, especially in the evening or when skin feels dry.

The scent is very light, soft, and botanical. It comes naturally from rose, geranium, rosehip CO₂, and the plant oils in the formula. Because the ingredients are natural, the scent may vary slightly from batch to batch.

This is a gentle botanical vitamin C ritual, so consistency matters. Many people notice skin looking brighter, softer, and more even over time, but it is not designed as a harsh overnight treatment.

It was formulated to feel gentle and nourishing, but every person’s skin is different. Start with a small amount, especially if your skin is reactive, and discontinue use if irritation occurs.