Formula: 72650 Difficulty level: advanced Shelf life: min 3 months pH optimal: 5.0-5.5 Phase Ingredients Dosage % Total 50 gr A Pure / distilled water 72 36 gr A Glycerin 5 2,5 gr B Milk thistle oil...
Kojic Acid
€5.01
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€4.21
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Description
Kojic Acid - The Depigmentation and Skin Evening Specialist
Kojic Acid is an active agent of natural origin, produced by various species of fungi (such as Aspergillus oryzae) during the fermentation process. It is one of the most popular ingredients in Asia for its ability to inhibit tyrosinase - the key enzyme in melanin synthesis. Used correctly, it helps fade pigmentation spots, melasma, and acne marks, providing the skin with a clear, luminous, and revitalized appearance. In addition to its depigmenting role, it also possesses antioxidant and mild antibacterial properties.
Ingredients (INCI): Kojic Acid.
Technical Characteristics
- Origin: Natural, obtained through fermentation.
- Appearance: Crystalline powder, almost white in color.
- Solubility: Dispersible in water and ethyl alcohol.
- Function: Depigmenting, antioxidant, brightening agent.
- General recommended dosage: 0.2% - 1%
Information from Specialized Literature
Kojic Acid is recognized in aesthetic dermatology for its targeted action on hyperpigmentation:
- Inhibition of Melanogenesis: Studies confirm that Kojic Acid captures copper ions from the tyrosinase enzyme, thereby blocking melanin production at the source.
- Efficacy on Sun Spots: Specialized literature documents a visible reduction in the intensity of spots caused by prolonged sun exposure after 4-6 weeks of topical use.
- Antibacterial and Antifungal Effect: Although primarily used for brightening, studies show it can also help manage small acne imperfections due to its antimicrobial profile.
- Synergy with Exfoliants: Clinical research indicates that Kojic Acid penetrates the skin layers better when associated with agents that facilitate cellular turnover.
Main Properties
- Depigmenting: Effectively combats age spots, freckles, and post-inflammatory hyperpigmentation.
- Brightening: Evens out the general skin tone, providing radiance to dull skin.
- Antioxidant: Protects cells against free radicals generated by UV radiation.
Applications
- Serums and gels for treating pigmentation spots.
- Night creams for regeneration and brightening.
- Hand lotions (senile spots).
- Cleansing soaps for evening out body tone.
Formulation Guide
- Procedure: Add to the aqueous phase. Kojic Acid is sensitive to oxidation (it can turn brown if the formula is not balanced).
- Stability: The addition of a chelating agent is recommended (to neutralize metals that accelerate oxidation) and the use of antioxidants in the formula.
- pH Range: Optimal between 4.5 and 5.5 for optimal long-term stability.
- Ellemental Synergies:
- Double Depigmenting Effect: Combine with Arbutin to address melanin production through two complementary mechanisms.
- Optimized Penetration: Associate with Gluconolactone. Gentle exfoliation with PHA allows Kojic Acid to more easily reach the layers where pigment is formed.
- Luminous Glow: Use alongside Vitamin C for a boost of radiance and antioxidant protection.
- Hydration Compensation: Associate with Hyaluronic Acid to prevent potential skin dryness during depigmentation treatment.
Frequently Asked Questions (FAQ)
Why has my Kojic Acid serum turned orange?
Kojic Acid oxidizes when exposed to light and air. Yellowing or browning indicates that the product has lost some of its efficacy. Use opaque containers with as little air contact as possible.
Is it safe to use daily?
Yes, at the recommended dosage of up to 1%. However, in case of sensitive skin, start with applications every 2-3 days to allow the skin to adjust.
Safety in Use
Profile: Safe ingredient, but requires rigor in formulation and storage.
Precautions: External cosmetic use. The use of a cream with SPF is recommended during the day, as the melanin inhibition process leaves the skin more vulnerable to the sun.
Depozitare: In a cool, dry place, away from direct light.
Scientific Reference Literature (2022-2025)
- Sarkar, R., et al. (2024). Kojic Acid in Dermatology: Mechanisms of action and safety profile in long-term hyperpigmentation treatment. Clinical and Aesthetic Dermatology.
- Lee, J. H., et al. (2023). Comparative study of Kojic Acid and Alpha-Arbutin in the management of melasma. International Journal of Cosmetic Science.
- Zhu, X., et al. (2022). Antioxidant and anti-tyrosinase activities of Kojic Acid derivatives: A biotechnological perspective. Journal of Bioscience and Bioengineering.
- Draelos, Z. D. (2025). Next-generation skin brighteners: Stabilizing Kojic Acid in modern topical formulations. Dermatologic Therapy (Update).
Details
Code
D-1376
Categories
Status
Natural compliant
Key benefits
antibacterial, antioxidant, skin tonic
Specific indications
acne, pimples, pigmentation spots, wrinkles, fine lines
Skin care
Face creams, Serums, Treatments
Body care
Creams Emulsions, Hand creams
Solubility
dispersible in water, in ethyl alcohol
Storage
in a cool dry place away from direct sunlight
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b
bianca P.
05 Mar 2025
It is an essential ingredient in creams designed to treat pigmentation disorders. I incorporate it in anti-peeling and concealer creams, giving remarkable results.
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gabriela m.
10 Feb 2025
Buna ziua , creams formulated with kojic acid and arbutin can be used throughout the year? Are they also suitable in the evening and morning? Thank you in advance for your answer,
M
Miki M.
10 Jan 2025
It is a must in creams for pigmentation disorders. I use it in my anti-peeling, correcting creams with very good results.
A
Adriana U.
10 Dec 2024
in formulations for pigmentation disorders such as age spots, freckles, melasma, hyperpigmentation and acne blemishes can be incorporated into skin care formulations designed to open skin tone, moisturizers, emulsions, lotions, gels, fluids, serums
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Cristina P.
10 Dec 2024
I've been using for 3 days and I can already see them disappearing , I've used other products and still spotted I was . I'm very satisfied maybe finally I will have a clean face .
A
Anca R.
10 Oct 2024
It has great effects when included in skin depigmentation products. The result is guaranteed and even very much appreciated!
A
Adina B.
10 Oct 2024
A must in formulas for pigmentation disorders. I use it in anti-wrinkle cream, concealer.
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Miki M.
10 Oct 2024
A very good product in antipete creams ,together with lily oil and carrot essential oil it's wonderful.
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Denisa G.
22 May 2024
A very good product and useful in preparing creams for skin depigmentation
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Elena P.
22 May 2024
I used kojic acid in a cream for a person with freckles and pigmentation problems due to photoaging. The cream was very well tolerated, the results did not take long to show, my friend is very happy with the final product.
R
Renata T.
11 Mar 2024
I used kojic acid in the formulations of creams for hyperpigmentation. It is an indispensable addition in creams of this type. If you make creams for dark spots on the skin, definitely use this kojic acid.
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Lidiya D.
29 Nov 2023
From skin pigmentation. Great product for skin with dark spots. The cream works very well with it. The skin became brighter and fresher.
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Mirela F.
05 Oct 2023
A ubiquitous ingredient in anti blemish creams and serums. I fell in love with this ingredient which, together with white lily oil and carrot seed extract, works wonders on blemished skin and brightens. Of course, the effect is guaranteed if you avoid applying sunscreen products to your complexion in the summer.
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Elena A.
05 Oct 2023
Anti-pigmentation cream would not be as good if I didn't use kojic acid. It is very good, and people with couperose have written that they love the cream that includes kojic acid.
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Cosmetics F.
03 Aug 2023
Top ingredient for a facial toner with Rose water
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Cosmetics F.
03 Aug 2023
It really works!!!
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Luminita A.
05 Oct 2022
It is a very good product, fades unsightly pigmentation spots, brightens the complexion, improves skin tone, antioxidant, delays wrinkle formation, antibacterial, antifungal.
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Alice S.
05 Apr 2022
A very useful and suitable product against pigmentation spots especially used with ascorbic acid.
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Damian R.
05 Jan 2022
I recommend this active in the preparation of products that combat hyperpeiment spots!
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Ionita Ionela Paula
11 Oct 2018
I want to prepare a cream concentrated in kojic acid. My question is if I can include kojic acid in the aqueous phase because it doesn't dissolve and if it is tremisensitive if it loses its properties by adding in hot water