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ALASTIN HA IMMERSE Serum is an award-winning, technology-led hyaluronic acid serum created to deliver immediate surface hydration while supporting the skin’s natural production and preservation of hyaluronic acid.
Powered by proprietary Octapeptide-45, multiple forms of hyaluronic acid and complementary hydration-supporting ingredients, this lightweight serum helps skin appear smoother, plumper and more radiant while visibly reducing the appearance of fine lines associated with dehydration.
Unlike a conventional hyaluronic acid serum that focuses principally on attracting moisture at the surface, HA IMMERSE takes a multi-level approach: it supplies topical hydration, supports the production of high-molecular-weight hyaluronic acid and helps preserve the hyaluronic acid naturally present within the skin.
Hyaluronic acid is naturally present in the skin and plays an important role in hydration, suppleness and visible volume. Its levels and distribution can change with age, environmental exposure and skin condition.
HA IMMERSE combines several technologies designed to address this from different directions:
Octapeptide-45 is the defining technology behind HA IMMERSE. This proprietary peptide is designed to support the skin’s natural production of high-molecular-weight hyaluronic acid, helping improve long-term hydration and visible plumpness.
High-molecular-weight hyaluronic acid contributes to the skin’s moisture-rich extracellular environment. By supporting this naturally occurring substance rather than relying solely on topical hydration, Octapeptide-45 gives HA IMMERSE its distinctive position within advanced medical-grade skincare.
This makes the serum especially relevant for skin displaying dehydration, loss of suppleness, dullness or fine lines that become more visible when the skin’s water content is depleted.
HA IMMERSE combines topical hyaluronic acid with supporting peptides, humectants and botanical-derived hydration technology.
Sodium hyaluronate is a water-binding form of hyaluronic acid that helps replenish surface moisture and create a smoother, more supple appearance.
This crosslinked form of hyaluronic acid has enhanced water-binding capabilities and helps retain moisture on the surface of the skin for sustained hydration.
Hexapeptide-11 helps protect the skin’s natural hyaluronic acid by supporting the control of enzymes associated with its degradation. This complements the production-supporting role of Octapeptide-45.
Tremella fuciformis, commonly known as silver mushroom, contributes additional moisture-binding and skin-conditioning properties.
Xylitylglucoside, anhydroxylitol and xylitol form a complementary complex that supports the skin’s moisture balance and its natural hyaluronic acid processes.
This multifunctional ingredient supports intrinsic hyaluronic acid activity while providing antioxidant protection against environmental stressors.
HA IMMERSE has been evaluated through clinical imaging and participant assessments, with results demonstrating both immediate and progressive improvements:
Clinical evaluation also demonstrated improvements in the appearance of skin texture, radiance and redness during continued use. These results support HA IMMERSE as a comprehensive hydration treatment rather than simply a temporary surface moisturiser.
HA IMMERSE is particularly well suited to:
Its lightweight texture makes it suitable for year-round use and allows it to be incorporated into both simple and advanced skincare programmes.
HA IMMERSE should be applied as the first serum after cleansing. This allows its hydration system to make direct contact with clean skin before subsequent corrective products are layered.
For a comprehensive rejuvenating programme, follow HA IMMERSE with ALASTIN Restorative Skin Complex, a peptide-powered multi-tasking serum designed to improve the visible appearance of skin texture, tone, elasticity, hydration and volume.
When uneven tone, dark spots or visible redness are also priorities, ALASTIN A-Luminate Brightening Serum can be incorporated as a targeted brightening step.
Explore the wider professional range in the ALASTIN skincare collection.
HA IMMERSE does not require application to wet skin. Its formulation is designed to provide effective hydration when applied directly to clean, dry skin.
ALASTIN recommends HA IMMERSE for daily use alongside dermal fillers. Topical HA IMMERSE and injectable hyaluronic acid fillers perform different but complementary roles: fillers address professionally selected areas beneath the skin, while HA IMMERSE supports hydration, smoothness and visible plumpness across the treated complexion.
Its elegant texture and progressive hydration benefits make it a particularly relevant homecare serum for maintaining a well-hydrated, polished skin appearance within an aesthetic treatment programme.
The two products perform complementary roles within the ALASTIN range:
They can be used together, with HA IMMERSE applied first after cleansing and Restorative Skin Complex layered afterwards.
HA IMMERSE is an advanced hyaluronic acid and peptide serum that combines immediate topical hydration with technology designed to support the skin’s natural hyaluronic acid production and preservation.
ALASTIN’s proprietary Octapeptide-45 supports the skin’s ability to produce high-molecular-weight hyaluronic acid, contributing to long-term hydration, visible plumpness and a smoother skin appearance.
The serum provides immediate hydration and surface smoothness, while continued use supports progressive improvements in moisture, radiance and overall skin appearance. In participant assessments, 98% agreed their skin felt smooth immediately after application.
Yes. Dehydrated skin is one of its principal indications. Its multi-level hydration system is designed to replenish surface moisture while supporting the skin’s own hyaluronic acid processes.
Yes. Oil and water balance are different, so oily or combination skin can still lack water. HA IMMERSE has a lightweight, non-tacky texture that allows it to provide hydration without the feel of a heavy cream.
Yes. Apply HA IMMERSE first after cleansing, followed by Restorative Skin Complex. This combines focused hyaluronic acid hydration with broader peptide-powered support for visible skin ageing.
Yes. ALASTIN describes HA IMMERSE as complementary to dermal fillers and recommends it for daily use within an appropriate skincare programme.
HA IMMERSE is a concentrated hydration serum. Many routines will obtain the best moisture support by applying a suitable moisturiser afterwards, particularly for dry or seasonally dehydrated skin.
Yes. HA IMMERSE can be applied across the face, neck and décolleté morning and evening.
Yes. The formulation is identified by ALASTIN as non-comedogenic and hypoallergenic.
Water, Glycerin, Polyacrylate-13, Dimethicone, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Octapeptide-45, Hexapeptide-11, Tremella Fuciformis Sporocarp Extract, Lactoferrin, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Xylitol, Propanediol, Anhydroxylitol, Phospholipids, Xylitylglucoside, Hydroxymethoxyphenyl Decanone, Tocopherol, Ascorbyl Palmitate, Caprylyl Methicone, Caprylic/Capric Triglyceride, Polyisobutene, Caprylyl Glycol, Disodium EDTA, Betaine, Polysorbate 20, Ethylhexylglycerin, Caprylhydroxamic Acid, Sorbitan Isostearate, Helianthus Annuus (Sunflower) Seed Oil, Lecithin, Pentylene Glycol, Magnesium Chloride, Phenoxyethanol, Potassium Sorbate, Sodium Hydroxide.
Ingredient declarations can be updated. Refer to the packaging supplied with your product for the current list.
Discover the science behind this formula in our guide to ALASTIN HA IMMERSE, Octapeptide-45 and hyaluronic acid.
Explore the wider peptide platform in our ALASTIN TriHex and TriHex+ technology guide.
For the correct order of application, read our complete skincare layering guide.
Clinical data source: ALASTIN Skincare product information and data on file. Participant questionnaire conducted during a multi-centre clinical evaluation; individual results may vary.