dark spot serum - house of okaeri

Dark Spot Serum

€26,90
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dark spot serum - house of okaeri

Dark Spot Serum

€26,90

Your daily brightening serum ritual with vitamin C, vitamin E and kojic acid. Formulated to help reduce the appearance of dark spots and support a more even-looking skin tone.

In Japan, shokunin, the devoted craftsperson does not rush the work. Mastery is not speed. It is showing up, with the same materials, in the same way, until the result reveals itself.

This serum carries the same philosophy. Not perfection.


Just a ritual repeated consistently.


Dark spots are not a surface problem. Dark spots can appear over time due to sun exposure, stress, and other factors, and often take time to fade.

Consistent use over a full skin renewal cycle gives the formula the best chance to visibly reduce their appearance.

This isn't a failure of the formula. It's a timing problem.

Welcome home to your clarity.

eco cert cosmos natural logo
Who is it for

Skin profile

  • Concern: Dark spots, hyperpigmentation, uneven tone, post-blemish marks
  • Skin type: All skin types; formulated with mature skin in mind
  • Aroma: Green citrus opens with lemon and orange peel, brightened by ginger and fresh cucumber. Settles into woody vetiver, cedarwood, and earthy patchouli; grounding, like an Asian apothecary at dusk.
At a glance

15 ml / 0.5 fl oz • Approx. 60–90 applications (depending on usage)

  • Brightening dark spot serum
  • Helps improve the appearance of uneven skin tone
  • With vitamin C, vitamin E and kojic acid
  • Supports a more radiant-looking complexion
  • Antioxidant protection against environmental stress
  • Lightweight daily serum texture
  • Suitable for targeted pigmentation concerns
  • Designed for consistent skincare rituals
Key ingredients 
  • Kojic acid (1%)
  • Vitamin C
  • Vitamin E
  • Sea buckthorn oil
  • Rosemary extract
  • Sodium PCA + betaine

100% natural origin ingredients
8% organic origin ingredients

  • Dermatologically tested
  • Vegan
  • Gluten free
  • Nut free

Ecocert COSMOS Natural certified
Certified by Ecocert Greenlife according to the COSMOS standard. Formulated with green chemistry principles, biodiversity-respecting ingredients, no GMOs, and recyclable packaging.

What to know

How to use it
  1. Apply a small amount directly to dark spots on clean, dry skin.
  2. Press gently into skin with fingertips, do not rub.
  3. Allow to absorb fully before applying moisturiser.
  4. Follow with the Dark Spot Face Cream to seal.
  5. Always use sunscreen during the day, as kojic acid may increase sensitivity to sunlight.

Use: Use once daily in the evening.

In the ritual: Step 2. Use after the Rice + Kojic Polish (2–3× per week). Use before the Dark Spot Face Cream every day.

Use consistently as directed. Visible results vary by individual and develop gradually over time.

Full Ingredients

Full INCI: Aqua/Water, Simmondsia Chinensis (Jojoba) Seed Oil➀, Glycerin➁, Pentylene Glycol, Betaine, Isoamyl Laurate, Sodium PCA, Glyceryl Stearate Citrate, Kojic Acid, Sclerotium Gum, Parfum/Fragrance, Xanthan Gum, Hippophae Rhamnoides (Sea Buckthorn) Fruit Oil➀, Ascorbyl Palmitate, Tocopherol, Sodium Phytate, Capsicum Annuum (Paprika) Fruit Extract*, Potassium Hydroxide, Helianthus Annuus (Sunflower) Seed Oil➀, Rosmarinus Officinalis (Rosemary) Leaf Extract*, Limonene➂,  Citrus Limon Peel Oil, Benzyl Salicylate➂, Citral➂, Pogostemon Cablin Oil, Citrus Aurantium Peel Oil, Juniperus Virginiana Oil, Linalool➂, Cedrus Atlantica Oil/Extract, Pinene➂

➀Ingredients from organic Farming ➁Made using organic ingredients ➂From natural essential oils 

Made with green formulation principles; no GMOs, biodiversity-respecting ingredients, recyclable packaging and recycled transport materials.

Every ingredient has a purpose. Every ingredient earns its place.

Three actives. Three pathways. One daily ritual.

Kojic acid (1%) - inhibits tyrosinase, the enzyme responsible for melanin production. Works at the source to slow the formation of new dark spots and support a clearer, more even skin tone. EU-compliant at ≤1% per Regulation (EU) 2024/996.

Vitamin C - antioxidant active that works on existing discolouration through a separate pathway from kojic acid. Brightens the complexion and protects against the oxidative triggers; UV and pollution that cause dark spots to form.

Vitamin E - stabilises the vitamin C in the formula and supports the skin barrier's resilience. Makes the formula more effective and gentler simultaneously.

Sea buckthorn oil - rich in antioxidants and fatty acids; nourishes and supports barrier recovery between active correction sessions.

Rosemary extract - antioxidant support; protects the formula's stability and contributes to skin protection against environmental stressors.

Sodium PCA + betaine - moisture-binding actives that prevent the dryness or tightness sometimes associated with daily active use.

Used together, daily, as a leave-on treatment, not interchangeably or in rotation.

How much does shipping cost?

Shipping is calculated based on your location and the items in your order. You will always know the shipping price before you purchase.

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Frequently asked questions

How long until I see results?

Visible results from kojic acid and vitamin C require 4–6 weeks of daily use. The skin renews in 21–28 day cycles. Pigmentation changes take at least one full renewal cycle to surface. Consistent daily use is essential; inconsistent use will not produce the same result. Begin with a committed 6-week ritual before assessing.

Does kojic acid work on all skin tones?

Yes. Kojic acid inhibits melanin production at the enzymatic level. This mechanism applies across all skin tones. Dark spots from sun damage, post-blemish marks, and hormonal pigmentation respond to kojic acid regardless of base skin tone.

Why does skin need to be dry before applying?

Damp skin reduces the absorption of water-soluble actives like vitamin C. Patting skin dry and waiting 30 seconds before application ensures the formula absorbs properly rather than sitting on the surface.

Can I use this with retinol or AHAs?

It is generally recommended to use kojic acid and vitamin C separately from retinol and strong AHAs to reduce the risk of irritation. Use this serum in the evening and retinol on alternating evenings. If you experience sensitivity, reduce frequency and allow skin to adjust.

Do I still need SPF?

Yes, this is non-negotiable. Kojic acid and vitamin C both increase photosensitivity. Without daily SPF, UV exposure will continue to trigger the melanin production the serum is working to interrupt. SPF is part of this ritual, not optional.