Dark Spot Serum

Yes - and sensitive skin is exactly who this serum was made for. We deliberately chose Gluconolactone (a PHA) over harsher AHAs or acids, because PHAs exfoliate gently without disrupting the skin barrier or causing the stinging, redness, and peeling common with vitamin C or kojic acid serums. Our botanical base - Chamomile, Calendula, and Sea Fennel - actively calms inflammation as the brightening actives work. There is no added fragrance, no synthetic dyes, and no parabens. If your skin reacts to most brightening serums, start every other evening and build up from there.

With niacinamide: Yes, they're a great pairing - niacinamide and our mushroom-botanical complex reinforce each other's brightening and barrier-repair effects. With Vitamin C: Possible, but not in the same routine. Use Vitamin C in the morning and Glenari Dark Spot Serum in the evening - or alternate days if your skin is reactive. With retinol: Yes, alternate - retinol one night, this serum the next. Don't layer both at the same time. General rule: Apply this serum after cleansing and toning, before moisturizer. It's thin enough to go first in a multi-serum routine.

Yes, and here's why it matters: dark spots are triggered and darkened by UV exposure. If you use this serum in the morning without SPF, the sun will work against everything the serum is doing - you'll be brightening with one hand and re-darkening with the other. Apply a broad-spectrum SPF 30+ every morning as your final step. This is non-negotiable for results, regardless of which dark spot treatment you use. The good news: our formula is gentle enough for daily PM use too, so many people get their best results applying it in the evening only.

Most dark spot serums rely on high-concentration vitamin C, kojic acid, or strong AHAs - actives that work but regularly cause irritation, especially on sensitive or reactive skin. Glenari takes a different approach: medicinal mushroom extracts (Shiitake/Lentinus Edodes and Turkey Tail/Trametes Versicolor) have been studied for their ability to naturally regulate melanin production - the root cause of dark spots - without triggering inflammation. We combine them with Jackfruit Extract (a gentle, science-backed brightener), Gluconolactone (a skin-safe PHA), and a calming botanical base of Chamomile, Calendula, and Green Tea. No harsh acids. No synthetic fragrance. No compromise on sensitive skin.