
Niacinamide 377 VC Brightening Toner
Brightening spray toner with Niacinamide, 377, and Vitamin C. Supports a brighter, more even-looking skin tone with consistent use. Contains brightening actives — sensitive skin should patch test first.
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Visual Guide

How to Use
Avoid
- Avoid mixing in the exact same routine step with heavy exfoliants (AHA/BHA) if sensitive.
- Do not use two toners in the same routine.
- Must use sunscreen during the day.
Best For
Skin Types
Concerns
Use Cases
Use with Caution If
Day 1–3
Brief tingling or mild tightness upon application is normal as skin adjusts to 377 and brightening actives — this should fade within 1–2 minutes. Any mild redness subsides quickly. Applying moisturizer afterward helps relieve tightness.
Day 4–7
Tingling and tightness decrease noticeably with each use as skin builds tolerance. Complexion may start to look less dull.
Day 7–14
Skin has largely adjusted — little to no tingling. Skin tone begins to appear more even with continued use.
When to Worry
If discomfort persists beyond 2 minutes, is accompanied by persistent redness, swelling, peeling, rash, or skin breakage, stop using the product. Normal tolerance building: tingling fades quickly, no persistent redness, no peeling/rash, no skin breakage, and discomfort lessens with each use.
Mistake
Not wearing sunscreen with this
Why It's Bad
Without sunscreen, the brightening effect is greatly reduced, and you increase the risk of skin sensitivity and photoaging.
Do Instead
Apply SPF 30+ every morning without exception.
Mistake
Using two toners in the same routine
Why It's Bad
Layering multiple toners at once can make the routine redundant and increase the chance of sensitivity.
Do Instead
Use this toner on its own in the brightening step, then follow with serum and moisturizer.