A serum is the most active step in a daily skincare routine. It holds active ingredients in a higher concentration, its light molecular structure lets it absorb more deeply, and each one is made to deal with a specific skin concern. There is no universal miracle product that suits everyone. You get the best result from a serum whose active ingredients match what your skin needs right now. Below is an overview of the most common skin concerns, with products from the Kumii shop for each.
1. Concern: dull, tired, lifeless complexion
- Skin condition: the skin tone is greyish or uneven, there is no natural glow and the skin looks worn out (stress, lack of sleep, dry indoor air).
- What the skin needs: ingredients that support cell renewal, antioxidants and niacinamide.
Our pick: Medicube PDRN Pink Peptide Glow Serum (30ml)
This serum combines PDRN from salmon DNA with a five-peptide complex and niacinamide. PDRN supports the skin's natural repair processes, and the light pink serum gives an instant healthy glow without feeling sticky.
How to use: apply 2 to 3 drops to clean skin after toner, morning and evening.
2. Concern: surface dryness, tightness and loss of elasticity
- Skin condition: the skin feels tight after washing, the complexion has lost its plumpness and fine dehydration lines have appeared.
- What the skin needs: hydration at several levels and proteins that support the skin's collagen.
Our pick: Medicube Triple Collagen Serum (55ml)
The serum contains three types of collagen (hydrolyzed, atelocollagen and soluble collagen) that bind moisture in different layers of the skin and restore its plumpness. The light serum nourishes dry skin and strengthens the skin barrier.
How to use: works well in both your morning and evening routine before moisturizer, especially during the autumn and winter heating season.
3. Concern: first wrinkles, enlarged pores and loss of firmness
- Skin condition: lines have formed at the corners of the eyes, on the forehead or around the mouth, pores look larger as the skin loses elasticity, and the skin needs smoothing.
- What the skin needs: vitamin A (retinol) and signal peptides that encourage the skin's natural renewal and help improve its density.
Our pick: Celimax The Vita A Retinol Shot Tightening Serum (30ml)
An effective anti-aging, pore-tightening serum that combines vitamin A (retinol) with a peptide complex. It supports skin elasticity, helps smooth expression lines and leaves the skin texture smoother and firmer. Panthenol and allantoin hydrate and soothe, supporting the skin barrier and helping to prevent excess dryness.
How to use: in the evening only, on clean skin before your night cream. For the first two weeks, use it twice a week so your skin gets used to it, then use it more often step by step. Always wear sunscreen (SPF 50) during the day.
4. Concern: uneven texture, enlarged pores and products that don't absorb
- Skin condition: the skin feels rough to the touch, products "sit" on the surface and pores clog easily.
- What the skin needs: gentle micro-stimulation and something that helps active ingredients absorb more deeply.
Our pick: VT Cosmetics Reedle Shot 100 (50ml)
A Korean skincare product with natural silica-based microneedles (Cica Reedle™). When you apply it, they create gentle micro-stimulation and open tiny channels on the skin's surface that help the serums and active ingredients you apply next absorb better.
How to use: in the evening, apply it as the first step straight onto freshly washed skin and pat it in gently (a light, natural tingling is normal). Follow straight away with a soothing or hydrating serum.
5. Concern: more visible signs of aging and sagging skin
- Skin condition: the skin needs strong support for cell renewal, smoothing of deeper wrinkles and restored density.
- What the skin needs: concentrated retinol and effective peptides.
Our pick: Medicube Deep Vita A Retinol Serum (30ml)
An intensive anti-aging serum with stabilized retinol, developed to smooth deeper lines and even out the skin's surface.
How to use: in the evening, starting with 1 to 2 times a week so your skin gets used to the retinoid. Don't use strong acids (AHA/BHA) on the same evening.
Quick guide: which serum should you choose?
| Skin type or main concern | Recommended active ingredient | Product from the Kumii range |
|---|---|---|
| Dull, lifeless, uneven tone | PDRN + peptides + niacinamide | Medicube PDRN Pink Peptide Glow Serum |
| Dry, tight, low elasticity | Hydrolyzed collagen + hyaluronic acid | Medicube Triple Collagen Serum |
| Fine lines, pores, loss of firmness | Retinol (vitamin A) + peptides | Celimax The Vita A Retinol Shot Tightening Serum |
| Rough texture, pores, poor absorption | Cica microneedles | VT Cosmetics Reedle Shot 100 |
| Deeper wrinkles, uneven surface | Retinol (vitamin A) | Medicube Deep Vita A Retinol Serum |
How to apply a serum correctly
- Order: cleanser → toner → serum → moisturizer → (SPF in the morning).
- Amount: 2 to 4 drops or one pump is enough. Using more won't speed up results and can overload the skin.
- Application: don't rub hard. Pat the serum gently into the skin with your fingertips until it has fully absorbed.
Why order from Kumii?
- 100% original products: every product comes from the official manufacturer and is kept in our warehouse in Estonia.
- Fast delivery: weekday orders placed by 6 pm ship within 24 hours, and the parcel usually reaches the parcel locker in 1 to 2 working days.
- A gift in every parcel: every parcel includes some nice product samples and testers, so you can discover new favorites!
