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Please note that delivery times may vary due to local customs procedures and carrier conditions, but your shipping and customs costs will remain completely free under this policy.
We provide a secure and reliable Free Returns service for all customers. Items that remain unused and unopened may be returned within 60 days for a full refund.
All return shipping expenses, including customs-related fees, are fully covered by us.
Refund processing will be completed within 4 weeks from the date the return shipment is sent, regardless of whether the package has arrived at our facility. In general, refunds are finalized significantly earlier, ensuring a smooth and dependable experience.
Isntree's Hyaluronic Acid line is the brand's best-known range, built around multi-molecular-weight hyaluronic acid (5 different weights in the full line). The Water Essence is the lightest, most layering-friendly product in that range: a watery essence that delivers intense hydration without texture weight. At $18.72 for 50ml, it's one of the most affordable "essence-tier" HA products in Korean skincare.
For chronic dehydration (skin feels tight, shows fine "dehydration lines" when smiling, doesn't respond to cream alone), stacking HA at the essence step is the K-beauty approach. Isntree's 5-level molecular weight system targets water binding at different skin depths. This Water Essence is usually the first layer of that strategy, followed by a cream for sealing.
Five different molecular weights of hyaluronic acid target different skin depths. Low-molecular-weight HA penetrates deeper for sustained hydration. High-molecular-weight HA sits on the surface, forming a moisture-binding film. The watery essence texture layers easily under other products without pilling or tacking. Over days of consistent use, skin shows plumper, more resilient baseline hydration.
After toner, pour 3 to 4 drops into palm. Pat into skin until absorbed. Follow with serum, moisturizer, and SPF. Use AM and PM. For extra hydration, apply 2 thin layers back to back.
Isntree's formula uses 5 molecular weights of HA; The Ordinary uses 3. Isntree's texture is lighter; The Ordinary is more viscous. For layering under other products: Isntree. For a single HA product stacked alone: either works.
Yes. Low-weight HA (under 50kDa) penetrates further into the epidermis. High-weight HA (above 1000kDa) stays on the surface as a moisture-binding film. Mid-weight bridges the two. Multi-weight products hydrate at multiple levels simultaneously.
In very low-humidity environments (desert, winter, AC), HA can pull moisture from skin rather than from air, causing temporary dehydration. Apply on damp skin and always layer a cream on top to prevent this.
Immediate plumping. Cumulative improvement in baseline hydration over 2 to 4 weeks.
No. HA essences pull water in; moisturizers seal it. Always layer a moisturizer over HA for the full effect.
Pair with Isntree Hyaluronic Acid Toner or browse Korean hyaluronic acid products.
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