One Thing Cica B5 Serum 50ml bottle front view
One Thing Cica B5 Serum texture close up
One Thing Cica B5 Serum 50ml bottle on green plant
This image features a collection of skincare products, prominently displaying the ‘Cica B5 Serum’. The product is presented in a sleek, white bottle with a minimalist design, topped with a pump dispenser for easy application.
One Thing Cica B5 Serum 50ml bottle front view
One Thing Cica B5 Serum texture close up
One Thing Cica B5 Serum 50ml bottle on green plant
This image features a collection of skincare products, prominently displaying the ‘Cica B5 Serum’. The product is presented in a sleek, white bottle with a minimalist design, topped with a pump dispenser for easy application.
One Thing Cica B5 Serum 50ml bottle front view
One Thing Cica B5 Serum texture close up
One Thing Cica B5 Serum 50ml bottle on green plant
This image features a collection of skincare products, prominently displaying the ‘Cica B5 Serum’. The product is presented in a sleek, white bottle with a minimalist design, topped with a pump dispenser for easy application.
One Thing Cica B5 Serum 50ml bottle front view
One Thing Cica B5 Serum texture close up
One Thing Cica B5 Serum 50ml bottle on green plant
This image features a collection of skincare products, prominently displaying the ‘Cica B5 Serum’. The product is presented in a sleek, white bottle with a minimalist design, topped with a pump dispenser for easy application.
ONE THING

Cica B5 Serum

$ 33.00
Size: 1.69oz / 50ml
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About the Product

ONE THING Cica B5 Serum is a lightweight, water-based formula that combines Centella Asiatica (also called Cica—a soothing plant extract known for calming irritation and supporting skin repair) with Panthenol (Vitamin B5), which helps hydrate and reduce redness. It absorbs quickly without feeling heavy, making it easy to layer into any routine. Use after toner and before moisturizer, morning or night.

Who is This For?

This serum works well for all skin types, but it's especially helpful if you're dealing with redness, dryness, or a stressed-out skin barrier. It's also a solid choice for anyone wanting a gentle, fragrance-free option for everyday soothing and hydration.

Key Benefits

  • Strengthens and repairs the skin barrier with Centella extracts and Ceramide NP
  • Calms visible redness and irritation using Panthenol and Allantoin
  • Delivers lightweight, layered hydration with Glycerin, Betaine, and Beta-Glucan
  • Supports the skin's natural repair process with ferment lysates and Niacinamide

Key Ingredients

  • Centella Asiatica Extract — Soothes irritation and helps strengthen the skin barrier
  • Panthenol (Vitamin B5) — Hydrates deeply and helps reduce redness
  • Ceramide NP — Reinforces the skin's protective lipid barrier
  • Niacinamide — Supports overall skin health and helps even out tone
FAQs

Q: Is ONE THING Cica B5 Serum suitable for acne-prone skin?
A: Yes, the lightweight, non-comedogenic formula contains Niacinamide and Centella Asiatica, which can help calm inflammation associated with acne without clogging pores.

Q: Can I use this serum with retinol or exfoliating acids?
A: It's best to use them at different times—try this serum in the morning and your actives at night to avoid potential irritation, especially if you have sensitive skin.

Q: Does this serum contain fragrance or essential oils?
A: No, this serum is formulated without added fragrance or essential oils, making it suitable for sensitive and reactive skin types.

Q: When should I apply this serum in my routine?
A: Apply after toner and before moisturizer, morning or night—the lightweight, water-based formula layers easily under other products.

Q: How long does it take to see results?
A: Many users notice improved hydration immediately, while visible calming of redness and barrier improvement typically takes 2-4 weeks of consistent use.

Q: Does this serum need to be refrigerated?
A: No refrigeration is required, but store it in a cool, dry place away from direct sunlight to maintain ingredient stability.

Q: Is this serum safe to use during pregnancy?
A: The formula contains gentle, pregnancy-friendly ingredients like Centella and Panthenol, but we recommend checking with your healthcare provider before adding new products to your routine.

How to Use

Cleanse and tone your skin as usual. Dispense an appropriate amount of serum onto your fingertips or palm. Apply evenly across the face and neck. Gently pat the serum into the skin until fully absorbed. For areas requiring more intensive soothing care, apply an additional layer and pat again. Follow with moisturizer and sunscreen (AM) or night cream (PM).

Ingredients

Water, butylene glycol, dipropylene glycol, glycerin (cosmetic use only), 1,2-hexanediol, betaine, glyceryl glucoside, hydroxyacetophenone, carbomer, centella asiatica leaf extract, arginine, panthenol, allantoin (cosmetic use only), ethylhexylglycerin, xanthan gum, adenosine, citric acid, disodium edta, melia azadirachta leaf extract, melia azadirachta flower extract, bifida ferment lysate, centella asiatica root extract, lactobacillus ferment lysate, lactococcus ferment lysate, niacinamide, hydrogenated lecithin, asiaticoside, asiatic acid, madecassic acid, beta-glucan, ceramide np.

Standard delivery within 2–5 business days

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