A thirst-quenching serum that hydrates deeply to help skin look plump and firm.
› Aroma - A soft, grounding aroma with warm, woodsy notes of Fir, Birch and Bergamot.

Why It's Special
- Deep-rooted hydration - Hyaluronic Acid and forest-found ingredients instantly replenish thirsty skin with deep, lasting hydration.
- Plump, juicy skin - Clinically proven to support noticeably plumper skin for a complexion that looks and feels more hydrated.
- Firms and smoothes - Powerful plant actives help skin look firm and smooth, improving the appearance of fine lines.
- Truly refreshing - Layers effortlessly under other skincare with a nearly weightless finish and subtle, grounding aroma.
Key Ingredients
Pure, Powerful Ingredients - No petrochemicals. No sulfates. No parabens. No synthetic fragrances. Just pure, powerful ingredients your skin will thank you for.
- Hyaluronic Acid - Hydrates and plumps skin’s appearance by helping it attract and hold onto water
- Lupine Peptides - Support and replenish the skin barrier while firming the look of fine lines
- Tremella Mushroom - Holds up to 500x its weight in water, helping skin stay hydrated and nourished
- Beech Tree Extract - Deeply hydrates skin and helps it lock in moisture
- Sequoia Leaf Extract - Helps hydrate and firm skin’s appearance; known to contain antioxidants
Massage 1-2 pumps into clean skin morning & night before applying a moisturizer.
* Pro Tip: Mix a pump with your moisturizer or another serum for an extra boost of hydration.
aqua/water/eau, glycerin, ethylhexyl palmitate, saccharide isomerate, butylene glycol, squalane, lysolecithin, sclerotium gum, sodium hyaluronate, propanediol, caprylyl glycol, sorbitan oleate, helianthus annuus (sunflower) seed oil*, xanthan gum, pullulan, citric acid, hydrolyzed lupine protein, tetrasodium glutamate diacetate, silica, sodium citrate, porphyridium cruentum extract, fagus sylvatica bud extract, sequoia sempervirens leaf cell extract, genipa americana fruit extract, camellia sinensis leaf extract*, mentha spicata flower/leaf/stem extract*, benzyl alcohol, tremella fuciformis (mushroom) extract, simmondsia chinensis (jojoba) seed oil, cocos nucifera (coconut) oil, butyrospermum parkii (shea) butter, benzoic acid, sodium benzoate, potassium sorbate, triethyl citrate, amyris balsamifera bark oil, citrus aurantium bergamia (bergamot) peel oil, citrus paradisi (grapefruit) peel oil, cinnamomum camphora oil, lavandula hybrida oil, pogostemon cablin oil, liquidambar syraciflua oil, vetiveria zizanioides root oil, citral, myrocarpus fastigiatus oil, citrus reticulata (tangerine) leaf oil, abies sibirica oil, acetyl tributyl citrate, humulus lupulus (hops) oil, rosa damascena flower oil, jasminum officinale (jasmine) oil, santalum album (sandalwood) oil, piper nigrum (pepper) seed oil, artemisia pallens flower oil, dipteryx odorata seed extract, hexenyl acetate, ferula galbaniflua (galbanum) resin oil, zingiber officinale (ginger) root oil, cananga odorata flower oil, myristica fragrans (nutmeg) kernel oil, betula alba oil, barosma betulina leaf oil, 3-hexenol, linalool, limonene.
*Certified Organic Ingredients
What is Hyaluronic Acid?
Hyaluronic Acid is a powerful hydrator that works by attracting water into your skin. It can hold up to 1,000x its own weight in water, making it incredibly effective at restoring moisture, so skin looks plump and replenished.
Is this the serum for me?
Whether you use one, two, or all four of Ursa Major serums is totally up to you and your skin needs!
- Forest Water Hyaluronic Serum is our go-to for deep hydration. It plumps skin, helping it appear firmer with fewer visible fine lines.
- Mountain Glow Serum is our go-to for an instant dewy boost. It restores moisture and supports collagen & barrier health, so skin looks youthful and firm.
- Brighten Up Vitamin C Serum is our go-to for brightening dull-looking skin and targeting stubborn dark spots, uneven texture and tone.
- Lunar Bloom Retinal Serum (for PM use only) is our go-to for dialing back the look of fine lines & wrinkles by promoting collagen production and skin renewal.
How and when do I use this product?
For best results, apply 1–2 pumps to clean, slightly damp skin. Use morning, night, or both—following with your favorite moisturizer to help seal in hydration.
Is this safe for sensitive skin?
Though not tested for sensitive skin, Ursa Major has designed their products to work for a variety of skin types and have heard awesome feedback from folks with sensitive, reactive skin. If you have extra-sensitive skin, we might recommend a patch test on the inner wrist before applying to the full face for extra precaution.
Is this product pregnancy-safe?
Forest Water Hyaluronic Serum does not contain any ingredients that are commonly avoided during pregnancy, like vitamin A or high doses (+2%) of salicylic acid. That said, we always recommend checking in with your healthcare provider about ingredient lists and any new products during pregnancy.
Can I use this around my eyes?
While the product is formulated with gentle ingredients suitable for most skin types, we recommend applying it around the eye area carefully, avoiding direct contact with your eyes, eyelids, and immediate eye contour. If you have extra-sensitive skin, we suggest performing a patch test on the inner wrist before applying to the full face for extra precaution.
Does this contain fragrance?
Forest Water has a subtle, woodsy aroma that comes entirely from real plant extracts - never synthetic fragrances.
For Australia, we offer both standard and express post options with Australia Post. We normally dispatch within 1 business day from our Melbourne store.
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International Shipping
Please refer to our shipping page for more information.
* NOTE: due to air travel restrictions, flammable items (perfume, room spray, nail polish/remover) cannot be shipped outside Australia.
USA Shipping Unavailable
We're currently unable to ship to the USA due to significant changes to regulations regarding US import tariffs. We're sorry for any inconvenience.
We want you to love our products as much as we do! If you are not completely satisfied with your purchase, please contact us. We are here to help and your happiness is our priority!
We always aim to provide the best online shopping experience. In the rare case that you wish to return the product for any reason, we will happily refund the purchase in line with our returns policy below:
- You must contact our customer service team within 30 days of receipt of product to authorise a return. Please click HERE to contact us.
- Products you wish to return must be unopened and in original condition.
Once we receive and successfully review the returned products, we will refund you the original purchase price of product returned. We will also refund you the shipping cost of the initial delivery to you if the goods were faulty, damaged or incorrectly shipped.
For more details, please click on the button below.