Innbeauty Project Pro C Serum 15% Vitamin C Refill — Brightening + Ferulic Acid, Fragrance-Free

INNBEAUTY PROJECT Pro C Serum is a fragrance-free, high-strength 15% vitamin C formula designed to brighten skin, reduce dark spots, and support a smoother, more even-looking complexion.

This lightweight, fast-absorbing refill serum combines a concentrated vitamin C complex with antioxidant ferulic acid to target uneven tone and visible signs of early aging without added fragrance. The non-greasy texture layers easily into morning and evening routines beneath moisturizers and sunscreen, helping skin appear clearer and more radiant over time when used consistently.

How quickly will I see brighter, more even skin?

Results depend on your skin and routine, but many users notice improved radiance and softened dullness within a few weeks. More pronounced reduction in stubborn dark spots typically requires consistent use for several weeks to months.

• Visible glow improvement often within 2–4 weeks with regular use.
• Dark spot and discoloration reduction may take 6–12+ weeks.
• Use daily under SPF in the morning for best protection and benefits.

Is this suitable for sensitive or acne-prone skin?

The serum is fragrance-free and formulated to be lightweight and non-comedogenic, making it generally well tolerated. If you have highly reactive skin, patch testing or starting with alternate-day application reduces risk of irritation.

• Fragrance-free to minimize potential irritants.
• Fast-absorbing, non-greasy base layers comfortably under other products.
• Patch test before full-face use if prone to sensitivity or active irritation.

How should I incorporate this into my skincare routine?

Apply the serum after cleansing and toning, before heavier moisturizers or oils. In the morning, always follow with a broad-spectrum SPF; vitamin C works synergistically with sunscreen to protect against environmental damage.

• Cleanse, then apply a few drops of serum to dry skin.
• Follow with moisturizer and daytime SPF or nighttime treatments as needed.
• Can be paired with niacinamide or gentle hydrators; avoid mixing directly with strong actives without guidance.

What performance features make this vitamin C serum effective?

The formula balances a high concentration of vitamin C with ferulic acid — an antioxidant booster — to enhance stability and overall protective effects. Its lightweight character ensures quick absorption and comfortable daily wear under makeup or sunscreen.

• 15% vitamin C concentration for targeted brightening benefits.
• Ferulic acid to support antioxidant activity and skin clarity.
• Low-sensory, fast-absorbing formula suitable for layering.

Who is this for: This refill is aimed at people who want a potent, fragrance-free vitamin C serum to address uneven tone, dullness, and early signs of aging while keeping a lightweight daily routine. It suits those looking to maintain brightness and support skin clarity with a concentrated antioxidant formula, including users who prefer refill packaging for sustainability and value.