Hyaluronic Acid Serum (MMW)

PSF Skincare

(5 reviews) Write a Review
Calculated at Checkout
1 FL OZ (30mL)

Hyaluronic acid is one of the most biologically complex and nourishing molecules for the skin. It is found naturally in young skin, and decreases subsequently with age. It is responsible for retaining moisture within the skin, contributes to plumpness, softness, and firmness of skin tone. This oil-free, gel-like moisturizer is capable of holding 1,000 times its molecular weight in water. When applied topically, it forms a micro-viscous film that is gas permeable to allow for tissue respiration. It locks water into the skin, to prevent it from evaporation. Hyaluronic acid is also critical for proper cellular function & can drastically reduce the appearance of fine lines & wrinkles on the skin.

Our Mixed Molecular Weight Hyaluronic Acid Serum is made from the highest quality pharmaceutical grade sodium hyaluronate that ranges in molecular mass of between <6,000 and 1.5 million daltons (Da/u). We do not use the pre-made serum so widely available from other cosmetic websites on the Internet. We purchase the bio-engineered sodium hyaluronate in pure powder form & we make our own fresh solution in our lab. The sodium hyaluronate that we use is not derived from animal sources, but from the biofermentation of organic plant matter.

Key Benefits:

  • Oil-free hydration
  • Protects & moisturizes
  • Allows for the tissue breathing process
  • Capable of holding 1,000 times its weight in water
  • Cruelty-free, Non-animal source
  • Great all-purpose serum for micro-needling


Key Active Ingredients:

• Sodium Hyaluronate – This biological salt is pharmaceutical grade & bio-engineered

• Panthenol - This is a precursor to Vitamin B5, which acts as an oil-free humectant, anti-inflammatory, antioxidant & soothes skin irritation & redness

To use: (AM & PM) - After cleansing, toning, and treatments, apply a few drops to fingers & smooth over entire face, neck and décolleté. Add a few drops to your favorite lotion or cream for an added hydration boost. Can be used on under-eye area & eyelids. Perfect hydration boost for lips & tops of hands.

5 Reviews Hide Reviews Show Reviews

  • 5
    Great base layer for perfectly smooth makeup

    Posted by Nancy Paddock on 3rd Mar 2019

    This is the last thing I put on before makeup. My makeup glides on so smoothly. If I skip it in a rush, I can instantly tell the difference and my face seems drier.

  • 5

    Posted by Teresa Meyer on 2nd Mar 2019

    I love that this exists. This is an ingredient I used to chase in pricey skincare. Why pay for irritating fragrance? I either mix this with emu oil or use it as a layer under a moisturizer. Never stop making this, and can you please come out with a hydrolized pure HA serum?

  • 5
    Supplemental Moisture for dry weather/Stand alone moisture for humid weather

    Posted by Pritha on 13th Dec 2015

    I love this product all year long for my combination skin. In winter I use it in conjunction with the PSF Moisture Balancing Lotion and my mineral sunscreen veil (not a PSF product but Skinceuticals). This combo really works for me in NYC. In summer, I use it with just the mineral veil sunscreen. The humidity plays in my favor keeping my skin comfortable and moist. If I've had a late night out or am under work deadline, I use a bit of this product under my eyes for a fresher look and feel. PSF HA is super well-priced and versatile. I won't be without it!

  • 5
    I will never, ever, ever be without this

    Posted by Kristy on 28th Aug 2013

    I will never, ever, ever be without this. Hyaluronic acid is just so phenomenal, and this 100% pure HA serum is the best I've found. LOVE!

  • 5
    It's the bomb!

    Posted by Susan on 28th Aug 2013

    This is the moisture product for oily-break-out-prone folks. It's the bomb! And PSF makes it from a non-animal source, unlike a lot of other companies. GREAT product.