100% authentic Korean-market formulas

Free US shipping on orders of $100 or more. 100% authentic Korean-market formulas. Ships from our California warehouse, at your door in 3-5 days. Intact Korean batch codes on every unit.

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KOREAN PHARMACY

Isntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml

Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml is Isntree's lightweight, tone adjusting sun care step, formulated for dullness and an uneven-looking tone.

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$30.50
  • Ships from our California warehouse
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Suited to
SensitiveDryNormalCombination
Helps with
Dullness and an uneven-looking toneRough, flaky or wind-chapped textureDehydration and tight-feeling skinFine lines and loss of bounce

In stock. Ships from our California warehouse, dispatched within 2 business days

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  • Free US shipping on orders of $100 or more
  • Dispatched within 2 business days

Key benefits

  • Niacinamide for brightening, barrier-supporting
  • Panthenol for barrier-softening
  • Lactobacillus Ferment for fermented hydrator
  • Lightweight, tone adjusting texture built for a final morning step
  • Authentic Korean-market formula, sourced as the same version sold on Korean retail shelves

Key actives

Niacinamidebrightening, barrier-supporting

Niacinamide sits in the formula as the brightening and barrier workhorse of the routine, the same B3 vitamin dermo-cosmetic protocols reach for when a complexion looks dull, blotchy or prone to visible redness after cleansing.

Panthenolbarrier-softening

Panthenol is pro-vitamin B5, included to keep the skin barrier feeling supple and to soften the rough, flaky patches that show up on dry or wind-chapped skin during a Korean skincare routine's colder months.

Lactobacillus Fermentfermented hydrator

Lactobacillus Ferment is a fermented filtrate Korean skincare brands favor for a lightweight, fast-absorbing hydration boost, part of the fermented-skincare tradition Korean labs have built up over two decades.

Sodium Hyaluronatehydrating humectant

Sodium Hyaluronate is the humectant carrying the water-binding job in this formula, drawing moisture into the surface layers and giving the texture the cushioned, dewy slip that a Korean essence or serum is known for.

Adenosineanti-wrinkle functional

Adenosine is the anti-wrinkle functional ingredient Korea's own cosmetic regulator recognises at this exact INCI name, and it is why a formula like this one gets reached for once fine lines start showing up around the eyes and mouth.

How to use

  1. The final step of a morning routine, after moisturizer and before makeup.
  2. Dispense enough to cover the face and neck evenly rather than a thin, spotty layer.
  3. Smooth in without rubbing hard, and give it a minute to settle before makeup.

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Isntree Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml

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How it works

Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml is Isntree's lightweight, tone adjusting sun care step (50ml). Niacinamide sits in the formula as the brightening and barrier workhorse of the routine, the same B3 vitamin dermo-cosmetic protocols reach for when a complexion looks dull, blotchy or prone to visible redness after cleansing. Panthenol is pro-vitamin B5, included to keep the skin barrier feeling supple and to soften the rough, flaky patches that show up on dry or wind-chapped skin during a Korean skincare routine's colder months. The lightweight, tone adjusting texture sinks in without a greasy residue, leaving skin feeling soft and lightly finished rather than heavy or cast-prone. It sits in a Korean routine as the final morning step, best layered as the final step each morning.

Worth knowing

  • Patch test on the inner arm before a first full-face application if skin tends to react easily.
  • Store away from direct sunlight and high heat to keep the texture and scent stable over time.
  • Introduce one new active at a time when adding this into an existing routine.

Reviews

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We’re on gram!

Creators trying on authentic Korean skincare routines and products from us.

  • Rating a shelf of Dr. Althea products one by one.

    Jasmine Loo · YouTube

  • Two hydrating serums side by side, IUNIK and Dr. Althea.

    Kristin · YouTube

  • A walk through the Dr. Althea serum lineup and who each one suits.

    auraofmahmuda · YouTube

  • A blunt first take on the Dr. Althea range.

    Lexi Chang · YouTube

  • A first look at the viral 345 Relief Cream before buying.

    Shelley Nayak · YouTube

  • A first try of the Dr. Althea serum on camera.

    Hannah Ziad · YouTube

Korean-market original

Shop Hyaluronic Acid Fresh Sun Serum SPF50+ PA++++ 50ml (50ml), the authentic Korean-market sun care step from Isntree formulated with Niacinamide, sourced for the Korean market rather than a US-shelf reformulation.

Verify your unit when it arrives

Verify your unit when it arrives

Korean-market stock with the original barcode and batch code intact, exactly as it left Korea.

Match the batch code on the box against the code printed on the bottle or tube itself; the two are stamped separately and should agree.

On the unit itself

  • The Korean-market barcode, unaltered from the retail package.
  • The manufacturer’s batch code, exactly as the maker printed it.

정품Genuine article, Korean-market stock

What professionals say

What professionals say

What skin-care professionals say about the key actives in this formula, quoted from the medical sources linked beside each.

  • Pantothenol is a common ingredient in skin care and hair products I recommend, particularly for people who are prone to dryness.

    Taylor Bullock, MDDermatology resident, Cleveland Clinic
  • Those bacteria are essential to fight infection, protect against environmental damage, regulate pH levels and keep the skin hydrated and healthy.

    Shilpi Khetarpal, MDDermatologist, Cleveland Clinic
1 more professional perspective
  • Niacinamide helps reduce the appearance of pores in a few ways. By strengthening the skin barrier and improving elasticity, pores appear less noticeable and more even.

    Ashlyn YankeAesthetician, Cleveland Clinic

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