Koshine
KT-939 Brightening Duo
KT-939 Brightening Duo
- Dual-Phase Treatment System
- Powered by KT-939 Complex™
- Visible Results, Backed by Science
Fades Dark Spots & Hyperpigmentation
Fades Dark Spots & Hyperpigmentation
Disrupts melanin activity at the root while lifting surface discoloration for visibly clearer skin.
Restores Skin Luminosity
Restores Skin Luminosity
Revives dull, tired complexions by boosting cellular turnover and enhancing natural radiance.
Strengthens Skin Barrier
Strengthens Skin Barrier
Niacinamide and calming peptides help fortify the skin against future pigmentation triggers like inflammation and pollution.
Gentle Enough for Daily Use
Gentle Enough for Daily Use
Non-sensitizing, fragrance-free, and clinically tested on diverse skin tones for maximum efficacy with minimal irritation.
CLINICALLY PROVEN
REGISTERED FACILITY
FOR DAILY USE
- 90 day money back guarantee
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Radiance Reset, Powered by Dual-Phase Science
Achieve visibly clearer, more even-toned skin with Koshine's Brightening Duo, a two-step solution powered by science-backed ingredients to target hyperpigmentation at the root. Clinically tested to address dark spots, post-acne marks, and uneven skin tone for skin of any tone or type. Formulated without harsh bleaching agents.
Key Benefits
- Targets hyperpigmentation, dullness, and uneven tone.
- Calms inflammation and protects against future pigment triggers.
- Clean, gentle, non-bleaching formulas.
- Dermatologist-tested and suitable for daily use on all skin tones and types.
What’s Inside the Duo
Brightening Serum
A lightweight, fast-absorbing formula infused with Koshine-939, niacinamide, and botanical actives to target dark spots and fade discoloration.
- Helps reduce visible pigmentation and blemishes
- Improves skin clarity and radiance over time
- Preps the skin for deeper hydration
Brightening Lotion
A rich, yet non-greasy moisturizer that locks in hydration and strengthens your skin barrier, enhancing tone and texture while soothing inflammation.
- Hydrates and softens without clogging pores
- Supports long-term skin tone balance
- Complements the brightening effect of the serum
How to Use
- Apply 2–3 drops of the Brightening Serum to clean skin.
- Follow with a thin layer of the Brightening Lotion.
- Use morning and evening for best results.
(Don’t forget SPF during the day to protect your glow!)
What to Expect
- Week 2–4: Skin appears calmer, more hydrated, with early brightness.
- Week 4–6: Spots and discoloration have visibly faded.
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Week 6+: More even tone and radiant complexion with long-term, consistent use.
Who It’s For
Anyone dealing with post-acne dark marks, melasma and hormonal pigmentation, dull and uneven skin tone, sensitive or inflamed skin.
No Bleach. No Burn. Just Results.
The KT-939 Brightening Duo was formulated with both safety and efficacy in mind. It gently resurfaces, restores, and illuminates your skin, all without any harsh acids, hydroquinone, added fragrance, or other common irritants.
