Side-by-side comparison

Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ vs Supergoop! Glowscreen SPF 40

Both are sunscreens. They share a 70% active-ingredient overlap, so the real decision is about price, texture and the supporting ingredients. Here's the side-by-side.

70%Active overlap
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.

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Supergoop!
Glowscreen SPF 40
SunscreenPremiumMorning only
protectDullnessSensitive skinAcne-prone skin

A chemical SPF with pearlescent pigments giving a dewy finish. Functions as sunscreen + tinted primer in one. Great on dry/normal skin; combination or oily skin can go shiny. The niacinamide and HA are genuine, not just window-dressing.

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The verdict

Which should you choose?

On price, the Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ sits in the Budget tier versus Premium for the Supergoop! — so it's the more budget-led pick if the overlap is what you're after. The Round Lab leans toward Damaged Barrier. The Supergoop! leans toward Dullness.

The overlap

What they share

At 70% active overlap, these are the ingredients doing comparable work in both formulas:

Spf / Sunscreen
The formulation

Ingredient stacks, side by side

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%

Supergoop! — top of the list

  • Avobenzone 3%~50–80%
  • Homosalate 5%~5–25%
  • Octisalate 5%~3–10%
  • Octocrylene 6%~2–6%
  • Water~1.5–4%
  • Niacinamide~1–2%
  • Glycerin~1–2%
  • Cetyl PEG/PPG-…~1–2%
  • Sodium Hyaluro…~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

Round LabSupergoop!
CategorySunscreenSunscreen
Price tierBudgetPremium
Best forprotect, Damaged Barrierprotect, Dullness
Usage notesMorning onlyMorning only
Active overlap70% — Spf / Sunscreen
Questions

Common questions

Is the Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ or the Supergoop! Glowscreen SPF 40 better?
Neither is universally better — they share 70% active-ingredient overlap, so for the actives that drive results they're close. The Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ is the more budget-friendly option, while the other may differ on texture, finish and supporting ingredients. Pick based on your skin's priorities rather than a single 'winner'.
What's the difference between the Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ and the Supergoop! Glowscreen SPF 40?
Both are sunscreens that share Spf / Sunscreen. Where they differ: they sit in different price tiers (Budget vs Premium); the Round Lab targets Damaged Barrier; the Supergoop! targets Dullness.
Are the Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ and Supergoop! Glowscreen SPF 40 dupes for each other?
They share 70% 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 Round Lab Birch Juice Moisturizing Sunscreen SPF 50+ and Supergoop! Glowscreen SPF 40 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.
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70% 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.

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