Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ vs Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid
Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ scores 8.2/9.8 and Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid scores 8.3/9.8 — a near-tie where your skin type decides the winner.
Head to head

Hyaluronic Acid Watery Sun Gel SPF 50+

Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid
Score comparison
These two are neck and neck — just 0.1 points apart.
Scores last verified: June 2026
Attribute battle
Hydration Efficacy
Saint Jane Beauty WINSIrritation Risk
TIEActive Ingredient Strength
Isntree WINSIngredient Transparency
Isntree WINSFormulation Safety
TIEIngredient face-off
13% overlapOnly in Isntree Hyaluronic Acid Watery Sun Gel SPF 50+
33 unique
Only in Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid
12 unique
Why these two are neck and neck
These two serums take different paths to a similar destination. Both formulas include solid hydrating ingredients, and the overall scores reflect that — the gap here is genuinely slim.
Ingredient Transparency is another area of separation. Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ scores 8.8 here versus 7.8 for Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid. That difference comes down to how each formula is built — the ingredient list tells the story.
Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid brings Niacinamide as an active, while isntree Hyaluronic Acid Watery Sun Gel SPF 50+ relies on Niacinamide, Ceramide Np, and Centella Asiatica Extract. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Best for your skin type
Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Butylene Glycol
- Anyone who prefers clean, well-vetted formulations
Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid is better if you have
- Sensitive skin — the low-irritation formula keeps things gentle
- Dry or dehydrated skin that craves moisture, thanks to Butylene Glycol
- Anyone who prefers clean, well-vetted formulations
Value comparison
At budget pricing with a score of 8.2, Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ is a decent pick. Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid sits at the luxury level with a 8.3 score — the higher investment pays off in formulation quality.
Our verdict
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.


Frequently asked questions
Which is better: Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ or Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid?
Based on ingredient analysis, Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid scores higher overall. See the full score breakdown above for details on each attribute.
Do Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ and Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid share ingredients?
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
What's the main difference between Isntree Hyaluronic Acid Watery Sun Gel SPF 50+ and Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid?
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.