Paula's Choice BOOST C15 15% Vitamin C Serum — Fragrance-Free Face Booster with Ferulic & Vitamin E, 0.67 fl oz

Paula's Choice BOOST C15 Super Booster is a concentrated 15% L-ascorbic acid serum formulated to brighten discoloration, smooth the look of fine lines, and deliver an immediate glow without added fragrance.

This lightweight booster blends pure vitamin C with supporting antioxidants to target dullness and uneven tone. The formula pairs L-ascorbic acid with ferulic acid, vitamin E, and ergothioneine to enhance antioxidant performance while remaining suitable for a range of skin types, including those prone to sensitivity. Use it under your moisturizer or mixed into serums to reinforce your daytime or evening routine.

How quickly will I see brighter skin after using BOOST C15?

Many users notice increased luminosity shortly after application, with more visible improvements in discoloration and texture over consistent weeks of use. The concentrated 15% pure vitamin C acts quickly on surface brightness while antioxidants support longer-term tone improvement.

• Immediate boost in radiance within minutes for many users
• Progressive improvement in uneven tone with regular use
• Best combined with daily sunscreen for optimal protection

Can I use this vitamin C serum on sensitive or reactive skin?

BOOST C15 is formulated to be gentle and fragrance-free, but concentrated vitamin C can still cause tingling for some. Start with a patch test and introduce it gradually—every other day—before moving to daily application if tolerated.

• Fragrance-free formula reduces irritation risk
• Begin with small amounts to assess tolerance
• Suitable to layer under moisturizers to buffer intensity

How should I incorporate the booster into my skincare routine?

Use BOOST C15 in the morning or evening after cleansing and before thicker serums and creams. It can be applied alone, mixed into your moisturizer, or combined with other water-based treatments for targeted results.

• Apply a few drops to clean skin, then follow with moisturizer
• Mix into your daily moisturizer for a gentler delivery
• Always follow daytime use with broad-spectrum SPF

What makes the antioxidant blend in this serum effective?

The formula pairs 15% pure L-ascorbic acid with ferulic acid, vitamin E, and ergothioneine to stabilize vitamin C and broaden antioxidant defense. These ingredients work together to support skin resilience against environmental stressors while helping maintain brightness and texture.

• Ferulic acid complements vitamin C and E to boost stability
• Vitamin E helps nourish skin and supports barrier health
• Ergothioneine adds antioxidant support for enhanced protection

Who is this for: Paula's Choice BOOST C15 Super Booster is designed for anyone seeking a potent, fragrance-free vitamin C treatment to address dullness, uneven tone, and early signs of aging. It's appropriate for people with normal to dry, combination, oily, and many sensitive skin types—provided they introduce the booster gradually and pair it with sunscreen during daytime use.

Ingredients

Water (Aqua/Eau), Ascorbic Acid, Glycerin, Ethoxydiglycol, PPG-26-Buteth-26, Mannitol, Tridecapeptide-1, Palmitoyl Tripeptide-5, Ergothioneine, Sodium Hyaluronate, Pentylene Glycol, PEG-40 Hydrogenated Castor Oil, Bisabolol, Sodium Gluconate, Decylene Glycol, Ferulic Acid, Oryza Sativa (Rice) Bran Extract, Tocopherol, Polyacrylate Crosspolymer-6, 1,2-Hexanediol, Panthenol, Sodium Phytate, Sodium Hydroxide, Citric Acid, Phenoxyethanol