HA (Hyaluronic Acid) IMMERSE Serum™

7 reviews
A breakthrough formula that delivers instant hydration for smoother, more radiant-looking skin — while helping amplify skin's hyaluronic acid levels over time. read full benefits

SKIN CONCERNS: Aging Skin | Dehydrated Skin | Dry Skin

1 Fl. Oz. 29.6 mL

HA (Hyaluronic Acid) IMMERSE Serum™
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  • Helps instantly boost skin hydration at the surface for smoother, more radiant looking skin.
  • Proprietary Octapeptide-45 helps the skin’s ability to naturally increase its own high-molecular hyaluronic acid production deep within for long-term skin plumping, anti-aging, and hydration benefits.
  • Provides both instant and long-lasting results.
  • Helps to increase natural levels of hyaluronic acid in the skin which works to minimize the appearance of fine lines and wrinkles.
  • Elegant, fast-absorbing, lightweight formula layers seamlessly under makeup and other skincare.
  • Recommended for daily use and complements dermal fillers.
  • Winner of New Beauty “Best Hyaluronic Acid” award.
  • Paraben Free
  • Cruelty Free
  • Gluten Free


  • Apply 1-2 pumps twice a day (morning and evening).
  • Apply HA IMMERSE as the FIRST product in your daily regimen.
  • Avoid getting in the eyes. If contact occurs, rinse thoroughly with water.

Learn how to open the bottle.

Frequently Asked Questions


Smoother, Calmer, More Radiant-Looking Skin After 4 Weeks of Use

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Female, Age 48
ALASTIN Skincare® Regimen: Gentle Cleanser, HA IMMERSE Serum, & SilkSHIELD SPF 30+, all products used twice daily (except sunscreen used morning only)
Imaging Equipment & Analysis: VISIA (Canfield, Scientific, Parsippany, NJ).
Reference: Data on file at ALASTIN Skincare®. Individual results may vary. Photographs are unretouched. Photography courtesy of Deanne Robinson, MD; Modern Dermatology, Westport, CT.

Improvement In The Appearance of Redness and Texture Within 8 Weeks

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Female, Age 38 ALASTIN Skincare regimen: Gentle Cleanser, HA IMMERSE Serum™, Ultra Light Moisturizer (post Week 4 due to dryness with weather change), & SilkSHIELD SPF 30+, all products used twice daily (except sunscreen used morning only) Imaging Equipment & Analysis: VISIA®-CR (Canfield Scientific Inc., Parsippany, NJ) Reference: Multi-Center Clinical Evaluation of a Topical Hyaluronic Acid Serum in Facial Skin, n=46; photographs are unretouched. Individual results may vary. Photography courtesy of DMR Research, Westport, CT.
Data on file at ALASTIN Skincare

Proprietary OCTAPEPTIDE-45 Technology:

Formulated with ultra-hydrating ingredients and using only the most essential form of hyaluronic acid (high-molecular HA) that mimics the HA naturally found deep within your skin.

  • Proprietary Octapeptide-45 helps the skin’s ability to naturally increase its own high-molecular hyaluronic acid production deep within for long-term skin plumping, anti-aging, and hydration benefits.
  • High molecular hyaluronic acid is naturally produced in our skin.
  • Delivers instant hydration to the skin's surface layers for the most visible smoothing effects. Has calming properties.*

  • A Hydrating Superpower

    The hydrating power of HA IMMERSE Serum™, seen through hydration mapping, shows improvement over time.

    Blue color represents the volumetric ratio of water in the skin tissue.

    †Clinical Study: Multi-Center Evaluation of a Topical Hyaluronic Acid Serum in Facial Skin, n=46. Subject assessment completed 15 minutes post application. Subject questionnaire completed at Weeks 2, 4, and 8. ALASTIN Skincare®. Data on file.

    • Octapeptide-45 - Helps to stimulate HAS2 in fibroblasts, enzyme that stimulates HA production. Encapsulated into a proprietary phospholipid delivery system for increased absorption and activity.
    • Hexapeptide-11 - Helps prevent the production of enzymes that breakdown HA, helping your body’s ability preserve its natural HA.
    • Sodium Hyaluronate Cross polymer - Crosslinked HA that has 50x more water binding capabilities than HA, it works to retain water on the surface of the skin resulting in excellent skin moisturization.
    • Silver Mushroom Extract - Provides and encourages skin hydration.
    • Hydroxy Methoxyphenyl Decanone - Potent intrinsic HA booster that also provides exceptional antioxidant protection.
    • Xylitylglucoside, Anhydroxylitol, Xylitol - A complex of three natural sugar compounds that enhance the skin’s own production of hyaluronic acid.

    Water/Aqua/Eau, Glycerin, Polyacrylate-13, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Octapeptide-45, Hexapeptide-11, Tremella Fuciformis Sporocarp (Silver Ear Mushroom) Extract, Lactoferrin, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Xylitol, Propanediol, Anhydroxylitol, Phospholipids, Xylitylglucoside, Phosphatidylserine, Glucose, Hydroxymethoxyphenyl Decanone, Tocopherol, Ascorbyl Palmitate, Dimethicone, 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


    Customer Reviews
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    United States United States

    Like the product hate the cap

    The product seems to be doing a good job . The new type cap for this product has been difficult for me. It doesn’t want to stay locked in open position for me. The product has had to be primed several times before it will dispense. I probably will not reorder this one just due to the bottle design

    United States United States

    Beautiful product!

    I swatched this on my hand and instantly knew I needed this in my life. I'm so glad I made the splurge! I have noticed a huge change in just a week. Smoother skin, beautifully glowy, helped me recover from my most recent microneedling treatment, etc. I'm a happy esthetician!

    United States United States

    HA Serum

    OMG love love love love

    Jessica C.
    United States United States

    The BEST HA serum

    I have tried all HA serums on the market, but this is my absolute fav! Having acne prone skin, this serum is a great way to keep moisture balance but not break out from heavy cream moisturizers. I also love that this product can be easily layered and it helps me produce more of my own HA!

    Mena M.
    United States United States


    This product it’s great!!! I haven’t felt my face so smooth in forever! I give this product a ⭐️⭐️⭐️⭐️⭐️.


    To open, twist the top silver collar of the bottle until the pump emerges completely and clicks into place. To close, twist the opposite direction.

    After washing your face, apply HA IMMERSE to your face and neck before applying any other product morning and night.

    Dry skin is a skin type that underproduces sebum (oil), is often consistent throughout the year, and usually feels dry all over the face and body. In contrast, dehydrated skin is a skin condition that lacks water, that any skin type may experience. It may come and go throughout the year with seasonal changes.

    No, HA IMMERSE Serum should be used to boost your anti-aging regimen. HA IMMERSE is a hydrating serum, whereas Restorative Skin Complex is an all-in-one anti-aging solution.

    Yes, HA IMMERSE Serum complements dermal fillers and is recommended for daily use.

    HA IMMERSE Serum can safely be used on the neck and decollete. We have not tested the product directly on the eyes or eyelids. Please refer to your provider.

    Based on your unique skin type and the season where you live,  you may still need a moisturizer. Alastin offers two moisturizers, Ultra Nourishing Moisturizer and Ultra Light Moisturizer. Please refer to your provider to discover which one would be best for you.

    No, you don’t need to wet your fingertips before using HA IMMERSE Serum.