Beauty of Joseon Glow Deep vs Numbuzin No.3: Which Glow Serum Actually Fits You?
Two of Korea’s most viral “glow” serums — but they chase radiance in completely different ways. One targets dark spots with arbutin; the other smooths texture with fermented ingredients.
Both promise glow — but one fades spots, the other smooths texture.
They’re both famous “glow” serums with niacinamide, but they get there differently. Beauty of Joseon Glow Deep is a targeted brightening serum: rice bran water plus 2% alpha-arbutin to fade dark spots and dullness. Numbuzin No.3 is a fermented radiance-and-texture serum: 42% bifida + 21% galactomyces ferments to smooth, refine, and glow — and it’s fragrance-free and bigger (50 mL vs 30 mL).
Same word “glow,” two different engines
Beauty of Joseon Glow Deep Serum: Rice + Alpha-Arbutin is a pigment-focused brightener. Its base is rice bran water (about 69%) for a dewy, nourished feel, and its active is 2% alpha-arbutin — a well-regarded, gentle skin-brightening ingredient that fades dark spots and evens tone over time — supported by niacinamide. If your “dull” really means visible spots and uneven tone, this is the more targeted tool. Note that it does contain fragrance.
Numbuzin No.3 Skin Softening Serum takes the fermented route. It’s built on a “golden ratio” of 42% bifida ferment lysate and 21% galactomyces ferment filtrate, plus niacinamide, squalane, and adenosine. Ferments like these are known for smoothing rough texture, refining the look of pores, and giving an all-over glow while supporting the barrier. It has no dedicated dark-spot active — its “glow” is radiance-and-texture, not spot-fading — and it’s fragrance-free.
So the honest question is what your skin actually needs: fade specific dark spots (Glow Deep) or smooth texture and boost overall radiance (No.3).
Beauty of Joseon Glow Deep Serum: Rice + Alpha-Arbutin
The targeted brightener for dark spots and dullness, with a dewy rice finish.
Best if: you want to actively fade dark spots and uneven tone with a gentle brightener.
Numbuzin No.3 Skin Softening Serum
The fermented radiance-and-texture serum — fragrance-free and generously sized.
Best if: you want smoother texture and overall radiance, fragrance-free and better value.
At a glance
Texture and how they feel
Both are lightweight, dewy serums that layer easily under moisturizer. Glow Deep has a nourished, slightly richer rice-water feel and a light fragrance; it sinks in to a soft glow. No.3 is silky and ferment-smooth, and because it’s fragrance-free it tends to sit better with reactive or fragrance-sensitive skin.
For results, both are consistency games. Alpha-arbutin (Glow Deep) fades spots gradually over weeks and works best paired with daily sunscreen. Ferment serums (No.3) build a smoother, more even-looking surface over time. Neither is an overnight fix.
What real reviewers report
Commonly praised: visible fading of dark spots and brighter tone over time, dewy rice-water finish, affordable, layers well.
Commonly flagged: contains fragrance (a con for reactive skin); brightening is gradual and needs sunscreen to hold results.
Commonly praised: smoother texture and softer, glowier skin, fragrance-free and gentle, generous 50 mL size, great value.
Commonly flagged: not a targeted dark-spot treatment (no dedicated brightening active); results are texture/radiance-led, not spot-fading.
Which one for you?
Pick BOJ Glow Deep if…
- fading dark spots / uneven tone is your goal
- you want a proven gentle brightener (alpha-arbutin)
- you like a dewy rice-water finish
- fragrance isn’t a dealbreaker for you
Pick Numbuzin No.3 if…
- smoother texture and overall glow is your goal
- you want high-percentage ferments (bifida + galactomyces)
- you need a fragrance-free formula
- you want a bigger 50 mL bottle for the price
FAQ
Do these fade dark spots?
Glow Deep does — its 2% alpha-arbutin is a gentle, targeted brightener that fades spots and evens tone gradually. Numbuzin No.3 brightens by improving texture and radiance, but it has no dedicated pigment-fading active, so it’s less targeted for specific dark spots.
Are they exfoliating?
Neither is an acid exfoliant. Numbuzin’s ferments help smooth texture gently over time; Glow Deep focuses on brightening, not exfoliation.
Which is better for sensitive or fragrance-reactive skin?
Numbuzin No.3 — it’s fragrance-free. Glow Deep contains fragrance, so patch test if you’re reactive.
Can I use both?
Yes. A common routine is No.3 for texture and glow, plus Glow Deep to target specific dark spots — layer the lighter one first, or use one morning and the other evening. Always finish daytime routines with sunscreen.
How long until I see results?
Give either several weeks of consistent use. Arbutin brightening and ferment texture-smoothing both build gradually; sunscreen is essential to keep brightening results.
Bottom line
Choose Beauty of Joseon Glow Deep to actively fade dark spots and even tone with 2% alpha-arbutin and a dewy rice finish.
Choose Numbuzin No.3 for fragrance-free, fermented texture-smoothing and all-over radiance — with more product per bottle.
Both deliver “glow,” but Glow Deep targets pigment and No.3 targets texture — match the serum to the problem you actually see.
Compare next: Beauty of Joseon Glow Serum vs COSRX Full Fit Propolis: Which Propolis Serum Wins?
Sources & verification
- Beauty of Joseon — official site. Checked Aug 23, 2026. Used for the Glow Deep Serum’s rice bran water + alpha-arbutin brightening positioning.
- INCIDecoder — Beauty of Joseon Glow Deep Serum full ingredient list. Checked Aug 23, 2026. Used to confirm rice bran water ~69%, alpha-arbutin 2%, niacinamide, and grain extracts.
- numbuzin — official site. Checked Aug 23, 2026. Used for the No.3 Skin Softening Serum’s fermented, texture-and-glow positioning.
- INCIDecoder — Numbuzin No.3 Skin Softening Serum full ingredient list. Checked Aug 23, 2026. Used to confirm bifida ferment 42%, galactomyces 21%, niacinamide, and the fragrance-free formula.
