Home / Sunscreens / Isntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++
Isntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++
By Nur → Last verified 9/29/2026
Price checked 9/29/2026
Flash sale; was $22.50 (checked 2026-09-29, flash sale -- recheck sooner than the standard cycle).
Affiliate links: we may earn a commission at no extra cost to you.
What we found
Based on how this product compares to others in the sunscreens category, cross-referenced against retailer listings and market data.
Strengths
- + Highly rated by shoppers at partner stores
Worth knowing
- - Chemical filter (retailer-stated by YesStyle). Fragrance-free per the full ingredient list. Verified DISTINCT from the locked Isntree Hyaluronic Acid Watery Sun Gel -- different product name, distinct listing, sold concurrently, not a rename.
Key ingredients
These are the ingredients Isntree highlights for this product, cross-checked against general dermatological and cosmetic-chemistry sources, not a full INCI list.
Fragrance: confirmed fragrance-free.
| Ingredient | What it is | What it does for skin |
|---|---|---|
| Niacinamide | A form of vitamin B3, one of the most studied ingredients in cosmetic dermatology. | Strengthens the skin barrier by boosting ceramide production, helps even out tone by limiting pigment transfer to skin cells, and can reduce the look of enlarged pores. |
| Panthenol | Pro-vitamin B5, which converts to pantothenic acid once absorbed into skin. | Hydrates as a humectant, supports wound healing, and has anti-inflammatory, soothing effects on irritated skin. |
| Adenosine | A compound naturally present in skin cells, used in skincare as an anti-aging active. | Recognized by South Korea's MFDS as a functional anti-wrinkle ingredient at 0.04% concentration, based on clinical studies showing measurable fine-line improvement; a real but modest effect, not a retinoid substitute. |
| Sodium hyaluronate | The salt form of hyaluronic acid, commonly used for its water solubility and stability in formulas; molecular weight varies by product rather than being uniformly smaller. | Draws and holds moisture the same way hyaluronic acid does; how easily it absorbs depends on the specific molecular weight used, which formulas don't always disclose. |
| Squalane | A stable, skin-identical oil, usually plant-derived (from olives or sugarcane) in modern formulas. | An emollient that softens skin and helps prevent moisture loss without feeling heavy or greasy. |
| Allantoin | A soothing compound, naturally occurring in some plants and also made synthetically. | Calms irritation and supports skin healing, often paired with other barrier-focused ingredients. |
| Tocopherol | The chemical name for vitamin E as typically used in skincare formulas. | Helps neutralize free radicals from UV and pollution exposure and supports the skin's moisture barrier. |
| Ectoin | A compound originally derived from extremophile bacteria, used in skincare for its protective, stabilizing properties. | Helps protect skin cells from environmental stress and supports moisture retention; increasingly used in sensitive-skin and after-sun formulas. |
What the brand says
Isntree's own marketing claims, not our own findings.
- Formulated with Squalane, Allantoin and Ectoin that deliver intense moisture to the skin and help strengthen the skin barrier
- Acne-prone skin test completed
- Quick absorption... refreshing, moisturizing finish
Research-Based
Our assessment comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. This product hasn't been hands-on tested yet. See our Methodology for what that distinction means.
Price history
Current price is the lowest we've recorded so far.
Cheaper alternatives in sunscreens
More sunscreens you may like
Frequently asked
How much does Isntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ cost per mL?
$0.29 per mL (currently $14.63 for 50 mL).
Has Isntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ been hands-on tested?
Not yet. Our assessment for this product comes from pricing, ingredients, and published information, not personal use, the same standard we apply across the site. See our Methodology for what that distinction means.
Has Isntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ won any awards?
Yes -- #1 in Hwahae Beauty Awards 2025; #1 in Hwahae Beauty Awards 2026.
What are the key ingredients in Isntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++?
The ingredients Isntree highlights for this product include Niacinamide, Panthenol, Adenosine, Sodium hyaluronate, Squalane, Allantoin, Tocopherol, Ectoin.
Sources
Pricing and availability for this product were verified against the following retailer listings.