Vitamin C Boosting Serum
High-potency stable vitamin C serum with ferulic acid and vitamin E for maximum brightening.
About this product
Dr. Althea Boosting Vitamin C Serum is a high-potency brightening serum that delivers stabilised vitamin C alongside synergistic antioxidants for maximum efficacy against hyperpigmentation, dullness, and oxidative stress. Formulated with ascorbyl glucoside as the stable vitamin C derivative, enhanced with ferulic acid and tocopherol — the same antioxidant trio proven in peer-reviewed studies to dramatically extend vitamin C activity in topical formulations. The serum is designed for users who want visible brightening results and are comfortable with a more potent vitamin C treatment.
Best for normal, combination, oily, sensitive skin looking to address hyperpigmentation, dullness, uneven tone — with a focus on brightening.
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How to Use
- 1Apply in the morning after cleansing and toning, before moisturiser.
- 2Dispense 3–4 drops and press gently into skin.
- 3Allow to absorb fully before applying SPF — vitamin C enhances UV protection.
- 4Store away from direct sunlight to preserve stability. Can also be used PM.
Product Claims
Common Allergens
Based on confirmed product attributes. Always check the full ingredient list for personal allergens.
Always check the full ingredient list if you have known allergies or sensitivities.
Routine Placement
Apply this serum & ampoule as step 5 in your routine.
Quick Stats
Key Ingredients
Ingredient Analysis
Disclaimer: Ingredient information is for educational purposes only and does not constitute medical or dermatological advice. Sources: EWG Skin Deep, EU CosIng, NIH PubChem.
pH Level
Highly acidic — effective for exfoliation. Avoid layering with alkaline products.
Dermatologist Note
The vitamin C + ferulic acid + vitamin E combination has strong clinical backing: Duke University research (Pinnell et al., 2005) demonstrated that ferulic acid doubles the photostability of ascorbic acid and vitamin E, increasing their combined photoprotective effect by 8x. Using ascorbyl glucoside (a stable C derivative hydrolysed to free ascorbic acid by skin enzymes) avoids the oxidation instability of L-ascorbic acid while retaining bioactivity. The Boosting formulation sits at a lower pH to support ascorbyl glucoside absorption, making it one of the more effective stable-C serums in the Korean market.
Based on published clinical literature and dermatological research.
Patch Test Recommended
This product contains high-strength actives. Before full application, apply a small amount to your inner arm or jaw and wait 24 hours to check for irritation.
If you experience redness, burning, or itching — discontinue use and consult a dermatologist.
Ingredient Analysis
Disclaimer: Ingredient information is for educational purposes only and does not constitute medical or dermatological advice. Sources: EWG Skin Deep, EU CosIng, NIH PubChem.
Where to Buy
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Disclaimer: Information on this page is for educational purposes only and does not constitute medical or dermatological advice. Always patch test new products and consult a qualified professional if you have skin concerns. Skinuity does not sell any products. We provide affiliate links to third-party retailers and may earn a commission on qualifying purchases.