1% KOJIC ACID SPOT TREATMENT
A targeted 1% kojic acid treatment applied directly to individual dark spots. 1% Kojic Acid is studied in cosmetics for the appearance of localised dark spots, while Sea Buckthorn omega-7 and Paprika and Rosemary antioxidants soften and comfort the skin.
Backed by published research · references belowContains fragrance (Parfum). Full ingredients
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Formulated for Dry Skin and Hyperpigmentation.
- 1% Kojic Acid, a fungus-derived brightening active, is studied in cosmetics for the appearance of localised dark spots and uneven tone1.
- Sea Buckthorn (Hippophae rhamnoides) Fruit Oil, a palmitoleic acid (omega-7) emollient plant oil, helps soften and condition the skin.
- Paprika (Capsicum Annuum) Fruit Extract and Rosemary (Rosmarinus Officinalis) Leaf Extract, antioxidant botanicals that nourish and comfort the skin.
Hero mechanism: Kojic Acid, a fungus-derived brightening active, is studied for the appearance of dark spots. Full mechanism and citations under Details and references.
A 15 ml / 0.51 fl oz targeted dark-spot serum built on 1% Kojic Acid (a fungus-derived brightening active), with Sea Buckthorn (Hippophae rhamnoides) Fruit Oil, Paprika (Capsicum Annuum) Fruit Extract, and Rosemary (Rosmarinus Officinalis) Leaf Extract. 100% natural origin, 8% organic origin, vegan eligible.
Kojic Acid, Hippophae Rhamnoides (Sea Buckthorn) Fruit Oil, Capsicum Annuum (Paprika) Fruit Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract.
Active ingredients:
- 1% Kojic Acid (a fungus-derived brightening active)
- Sea Buckthorn (Hippophae rhamnoides) Fruit Oil (a palmitoleic omega-7 emollient plant oil)
- Paprika (Capsicum Annuum) Fruit Extract and Rosemary (Rosmarinus Officinalis) Leaf Extract (antioxidant botanicals)
Aqua/Water, Simmondsia Chinensis (Jojoba) Seed Oil, Glycerin, Pentylene Glycol, Betaine, Isoamyl Laurate, Sodium PCA, Glyceryl Stearate Citrate, Kojic Acid, Sclerotium Gum, Parfum/Fragrance, Xanthan Gum, Hippophae Rhamnoides (Sea Buckthorn) Fruit Oil, Ascorbyl Palmitate, Tocopherol, Sodium Phytate, Capsicum Annuum (Paprika) Fruit Extract, Potassium Hydroxide, Helianthus Annuus (Sunflower) Seed Oil, Rosmarinus Officinalis (Rosemary) Leaf Extract, Limonene, Citrus Limon Peel Oil, Benzyl Salicylate, Citral, Pogostemon Cablin Oil, Citrus Aurantium Peel Oil, Juniperus Virginiana Oil, Linalool, Cedrus Atlantica Oil/Extract, Pinene
The ingredient list printed on your product’s packaging is always definitive; where it differs from this page, the packaging prevails.
- Dispense a drop onto the fingertip and apply directly to individual dark spots morning and evening.
- Avoid broadcast application across the full face.
- Layer with moisturiser and broad-spectrum SPF 30 or higher daily. Brightening actives benefit from UV avoidance during use.
Are there any side effects?
It contains naturally occurring fragrance compounds (Limonene, Benzyl Salicylate, Citral, Linalool, Pinene). Patch test on the inner forearm for 24 hours before facial use.
What does kojic acid do to your skin?
Kojic Acid is a cosmetic ingredient studied for the appearance of dark spots and a more even skin tone.
How do I use it?
Dispense a drop onto the fingertip and apply directly to individual dark spots morning and evening. Avoid broadcast application across the full face.
What is this and who is it for?
A targeted 1% kojic acid treatment applied directly to individual dark spots. 1% Kojic Acid is studied in cosmetics for the appearance of localised dark spots, while Sea Buckthorn omega-7 and Paprika and Rosemary antioxidants soften and comfort the skin.
100% natural origin, 8% organic origin, vegan eligible. Contains naturally occurring fragrance compounds (Limonene, Benzyl Salicylate, Citral, Linalool, Pinene). Patch test on the inner forearm for 24 hours before facial use. Kojic Acid may cause concentration-dependent skin sensitization. Apply only to targeted dark spots and avoid surrounding skin. Pregnancy and nursing: consult a dermatologist before use of Kojic Acid products.
Kojic Acid, a fungus-derived brightening active, is documented in cosmetic dermatology literature for the appearance of dark spots1. Sea Buckthorn (Hippophae rhamnoides) Fruit Oil contributes palmitoleic acid (omega-7), with an in vitro mechanism documented on human dermal fibroblasts on the Fruit Oil material2. Paprika contributes lycopene and capsanthin carotenoids, and Rosemary contributes rosmarinic and carnosic acid polyphenols as antioxidant botanicals.
- Kojic acid, clinical evidence for the appearance of dark spots (melasma): Tantanasrigul P, Sripha A, Chongmelaxme B. J Cosmet Dermatol. 2024;24(1):e16562. DOI 10.1111/jocd.16562. PubMed PMID 39555866. Patil R, Dhoot D, Balasubramanian A, et al. Cureus. 2025;17(3):e81330. DOI 10.7759/cureus.81330. PubMed PMID 40296942. Lim JT. Dermatol Surg. 1999;25(4):282-4. DOI 10.1046/j.1524-4725.1999.08236.x. PubMed PMID 10417583.
- Okamoto T, Nakashima F, Shibata T, Mori D. Seabuckthorn (Hippophae rhamnoides L.) pulp oil prevents ultraviolet-induced damage in human fibroblasts. Bioscience, Biotechnology, and Biochemistry. 2024;88(8):881-889. DOI 10.1093/bbb/zbae071. PubMed PMID 38796693.
How to cite this product page: Opuliss. 1% Kojic Acid Spot Treatment. Opuliss Skin product page. 2026. https://opuliss.com/products/targeted-dark-spot-care-1-kojic-acid
The Science
Kojic Acid is a cosmetic ingredient studied for the appearance of dark spots and a more even skin tone.
Source: Lim JT. Dermatologic Surgery, 1999 (PMID 10417583).
INSIDE THE SCIENCE
From precision-fermented actives to biomimetic complexes, discover what makes it Opuliss.
KOJIC ACID
A fungus-derived active, studied for the appearance of dark spots and a more even-looking tone.
Source: Patil R, et al. Cureus, 2025 (PMID 40296942).
SEA BUCKTHORN FRUIT OIL
Oil from the fruit flesh, rich in palmitoleic acid, an omega-7 fatty acid that made up 12 to 39% of it in the berries tested.
Source: Yang B, Kallio HP. Journal of Agricultural and Food Chemistry, 2001 (PMID 11308350).
PAPRIKA
Carotenoid-rich extract that helps protect against environmental stress.
Source: Fernández-García E, et al. Photochemical & Photobiological Sciences, 2016 (PMID 27537377).
HOW TO USE
Dispense a drop onto the fingertip and apply directly to individual dark spots, morning and evening.
Avoid broadcast application across the full face. This is a spot treatment, not a serum.
Layer with moisturiser, then broad-spectrum SPF 30 or higher daily. Brightening actives benefit from UV avoidance during use.
THE TEXTURE
The Opuliss difference
SCIENCE, MADE VISIBLE
Opuliss begins where the research ends. Every active is named, every claim is traceable, and nothing is left to promise alone.
Morning to night
A RITUAL, CONSIDERED
Each formula stands on its own and belongs to the whole. Layered with intention, morning and night, the routine becomes unmistakably yours.
A twenty four hour rhythm
THE SKIN KEEPS TIME
Skin is not the same at midnight as it is at nine in the morning. Across a single day its temperature, its acidity and the moisture it loses to the air each move on a rhythm of their own. Morning and night are not two routines. They are one, kept in time.
Yosipovitch G et al. Journal of Investigative Dermatology, 1998 (PMID 9424081). Sixteen volunteers sampled every two hours across a twenty four hour span.
