Side-by-side comparison

Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ vs Round Lab Birch Juice Moisturizing Sunscreen SPF 50+

Both are sunscreens. They share a 99% active-ingredient overlap, so the real decision is about price, texture and the supporting ingredients. Here's the side-by-side.

99%Active overlap
Beauty of Joseon
Relief Sun : Rice + Probiotics SPF 50+
SunscreenBudgetMorning only
protectDamaged BarrierDullness

Chemical SPF with rice extract and fermented lactobacillus filtrate — lightweight, hydrating, non-whitecast and affordable. One of the most-recommended K-beauty sunscreens for daily face use. European filters, so US availability is via grey import.

Full analysis →Find dupes →
Round Lab
Birch Juice Moisturizing Sunscreen SPF 50+
SunscreenBudgetMorning only
protectDamaged Barrier

A hydrating chemical SPF with birch juice as the primary base (replacing water in the formula). Light, comfortable finish; hydrating without being greasy. One of the go-to affordable K-beauty daily sunscreens.

Full analysis →Find dupes →
The verdict

Which should you choose?

Both sit in the Budget tier, so cost isn't the deciding factor here — choose on texture, finish and the supporting ingredients. The Beauty of Joseon leans toward Dullness.

The overlap

What they share

At 99% active overlap, these are the ingredients doing comparable work in both formulas:

Spf / Sunscreen
The formulation

Ingredient stacks, side by side

Beauty of Joseon — top of the list

  • Water~50–80%
  • Oryza Sativa (…~5–25%
  • Dibutyl Adipate~3–10%
  • Diethylhexyl B…~2–6%
  • Ethylhexyl Tri…~1.5–4%
  • Butyl Methoxyd…~1–2%
  • Bis-Ethylhexyl…~1–2%
  • Propanediol~1–2%
  • Glycerin~1–2%

Round Lab — top of the list

  • Betula Platyph…~50–80%
  • Butyl Methoxyd…~5–25%
  • Ethylhexyl Met…~3–10%
  • Dicaprylyl Car…~2–6%
  • Propanediol~1.5–4%
  • Glycerin~1–2%

● marks ingredients that appear near the top of both lists. Percentages are positional estimates from INCI order, not disclosed doses.

At a glance

The specs

Beauty of JoseonRound Lab
CategorySunscreenSunscreen
Price tierBudgetBudget
Best forprotect, Damaged Barrier, Dullnessprotect, Damaged Barrier
Usage notesMorning onlyMorning only
Active overlap99% — Spf / Sunscreen
Questions

Common questions

Is the Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ or the Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ better?
Neither is clearly better — they overlap 99% on active ingredients and sit in the same price tier. The difference comes down to texture, finish and the supporting ingredients, so the right choice depends on your skin type and preferences.
What's the difference between the Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ and the Round Lab Birch Juice Moisturizing Sunscreen SPF 50+?
Both are sunscreens that share Spf / Sunscreen. Where they differ: the Beauty of Joseon targets Dullness.
Are the Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ and Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ dupes for each other?
They share 99% active-ingredient overlap based on published INCI lists, so one can stand in for the other on the actives that matter — chiefly Spf / Sunscreen. A dupe matches the hero actives, not the full sensory experience, so expect differences in texture, fragrance and exact concentrations.
Can I use the Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ and Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ together?
They both fill the sunscreen slot in a routine, so you'd normally pick one rather than layer both. If you want to use both, treat one as your daytime option and the other for evening, and patch-test when introducing anything new.
Keep comparing

Related comparisons

Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ vs ISDIN Eryfotona Actinica SPF 50+
99% overlapBeauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ vs La Roche-Posay Anthelios Invisible Fluid SPF 50+
99% overlapBeauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ vs Supergoop! Unseen Sunscreen SPF 40
99% overlapBeauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ vs Supergoop! Glowscreen SPF 40
70% overlapISDIN Eryfotona Actinica SPF 50+ vs Round Lab Birch Juice Moisturizing Sunscreen SPF 50+
99% overlapLa Roche-Posay Anthelios Invisible Fluid SPF 50+ vs Round Lab Birch Juice Moisturizing Sunscreen SPF 50+
99% overlap

Want a deeper, personalised read? Drop both products into the live comparison tool for an ingredient-by-ingredient breakdown tuned to your skin profile.

Compare these yourself →