Side-by-side comparison

COSRX Aloe Soothing Sun Cream SPF 50+ vs Isntree Hyaluronic Acid Watery Sun Gel SPF 50+

Both are sunscreens. They share a 66% active-ingredient overlap, so the real decision is about price, texture and the supporting ingredients. Here's the side-by-side.

66%Active overlap
COSRX
Aloe Soothing Sun Cream SPF 50+
SunscreenBudgetMorning only
Sun ProtectionDrynessSensitivity

A chemical-mineral hybrid daily sunscreen with aloe for soothing. Lightweight and hydrating with minimal cast; a budget K-beauty staple, though high-SPF chemical filters mean diligent reapplication is still needed.

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Isntree
Hyaluronic Acid Watery Sun Gel SPF 50+
SunscreenBudgetMorning only
Sun ProtectionDehydrationOiliness

A viral watery-gel chemical sunscreen with hyaluronic acid and a weightless, no-cast finish. Beloved for its serum-like feel under makeup; like all chemical SPF it needs reapplication through the day.

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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 COSRX leans toward Dryness, Sensitivity. The Isntree leans toward Dehydration, Oiliness.

The overlap

What they share

At 66% active overlap, these are the ingredients doing comparable work in both formulas:

Niacinamide
The formulation

Ingredient stacks, side by side

COSRX — top of the list

  • Aloe Barbadensi…~50–80%
  • Aqua~5–25%
  • Ethylhexyl Meth…~3–10%
  • Zinc Oxide~2–6%
  • Glycerin~1.5–4%

Isntree — top of the list

  • Aqua~50–80%
  • Dibutyl Adipate~5–25%
  • Diethylamino Hy…~3–10%
  • Ethylhexyl Tria…~2–6%
  • Bis-Ethylhexylo…~1.5–4%

● 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

COSRXIsntree
CategorySunscreenSunscreen
Price tierBudgetBudget
Best forSun Protection, Dryness, SensitivitySun Protection, Dehydration, Oiliness
Usage notesMorning onlyMorning only
Active overlap66% — Niacinamide
Questions

Common questions

Is the COSRX Aloe Soothing Sun Cream SPF 50+ or the Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ better?
Neither is clearly better — they overlap 66% 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 COSRX Aloe Soothing Sun Cream SPF 50+ and the Isntree Hyaluronic Acid Watery Sun Gel SPF 50+?
Both are sunscreens that share Niacinamide. Where they differ: the COSRX targets Dryness, Sensitivity; the Isntree targets Dehydration, Oiliness.
Are the COSRX Aloe Soothing Sun Cream SPF 50+ and Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ dupes for each other?
They share 66% active-ingredient overlap based on published INCI lists, so one can stand in for the other on the actives that matter — chiefly Niacinamide. A dupe matches the hero actives, not the full sensory experience, so expect differences in texture, fragrance and exact concentrations.
Can I use the COSRX Aloe Soothing Sun Cream SPF 50+ and Isntree Hyaluronic Acid Watery Sun Gel 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.
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66% overlap

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