Some By Mi Yuja Niacin Brightening Toner

This toner targets uneven skin tone, dullness, and post-acne marks using two confirmed-concentration actives: 90% Yuja (yuzu) extract, which is naturally high in vitamin C and antioxidants, and 5% niacinamide, which inhibits melanin transfer to brighten and even skin tone. Adenosine and panthenol support hydration and barrier comfort alongside the brightening work.

Yuja (also called yuzu) is a Korean citrus fruit exceptionally rich in natural vitamin C and antioxidants — significantly more so than lemon or orange. In skincare, yuja extract brightens dullness, supports collagen synthesis, and helps fade discolouration. Here it forms 90% of the formula, making it the dominant active rather than a token botanical addition.

Yes. 5% is the clinically studied concentration at which niacinamide demonstrably reduces hyperpigmentation and evens skin tone with consistent use over four to eight weeks. Concentrations above 10% deliver diminishing returns and increase the chance of irritation. At 5%, combined here with yuja's natural vitamin C and sodium ascorbyl phosphate as a secondary brightener, this is a well-calibrated brightening formula.

Yes, more so than most brightening toners. The formula avoids direct ascorbic acid — which is the most common irritant in vitamin C products — and delivers its brightening effect through yuja extract and sodium ascorbyl phosphate, both gentler vitamin C sources. There are no essential oils at meaningful concentrations (citrus peel oil appears at 105 ppm, a trace amount). Bisabolol adds extra calming support.

Apply after cleansing, before serums and moisturiser. Use a cotton pad for light exfoliation of the surface, or press in with clean hands for a gentler approach. Morning use requires sunscreen to follow — brightening ingredients increase photosensitivity. Evening use allows the niacinamide and yuja to work overnight without UV interference. Both morning and evening use is appropriate for most skin types.

Niacinamide at 5% shows measurable improvement in hyperpigmentation and skin tone evenness at four weeks of daily use, with more visible results by six to eight weeks. Yuja extract's antioxidant and brightening effects contribute from early use. The honest answer is: two weeks for a first sense of radiance improvement, four to eight weeks for meaningful change to existing dark spots or post-acne marks.

Both are brightening toners from Some By Mi, but they work differently. The Yuja Niacin toner leads with yuja extract (90%) and 5% niacinamide — gentler, no direct ascorbic acid, better suited to sensitive or reactive skin. The Galactomyces toner adds direct vitamin C (ascorbic acid), galactomyces ferment, and a broader active complex — stronger, more layered, but higher irritation potential. For a first brightening toner or sensitive skin: Yuja Niacin. For those who already tolerate actives well and want more intensity: Galactomyces.