Moon Dew HA + Green Tea + B5 Serum
Moon Dew is a lightweight, water-based facial serum naturally scented with rose hydrosol and formulated with hyaluronic acid in the form of high molecular weight sodium hyaluronate. Green tea extract and panthenol pro-vitamin B5 round out the formula for a simple, hydration-focused facial-care step.
Ingredients
Rose hydrosol, distilled water, panthenol pro-vitamin B5, green tea extract, HMW (high molecular weight) sodium hyaluronate, Germall Plus.
Why Use Two Molecular Weights of Hyaluronic Acid?
Hyaluronic acid is a strongly hydrophilic molecule widely used in topical skin-care products for its humectant properties.
John & Price (2009) describe hyaluronic acid as extremely hydrophilic and report the frequently cited figure that it can retain up to 1,000 times its weight in water. Their article concerns hyaluronic acid generally and was not a study of Moon Dew itself.
Molecular size also influences how topical hyaluronic acid behaves. Bravo et al. (2022) reviewed the evidence for topical HA and reported that high-molecular weight HA has very limited skin permeability and tends to remain primarily at the surface, where it can contribute to a thin hydration layer. Moon Dew features both high-molecular weight sodium hyaluronate. The exact molecular weights used in this formula are not specified, so the research should be understood as general background on these forms rather than a measurement of penetration by Moon Dew itself.
Green Tea Extract: Research Background
Green tea (Camellia sinensis) contains polyphenols, including catechins, that have been extensively investigated for antioxidant and cosmetic applications. Febrinasari et al. (2025) reviewed 21 publications investigating green tea, green-tea polyphenols and EGCG in relation to skin aging and cosmetic use. The evidence included laboratory research, reviews and controlled human trials. The authors concluded that the available research supports continued interest in green tea as a topical cosmetic ingredient while also noting that further research is needed.
One of the clinical studies included in that review was conducted by Hong et al. (2013). In this randomized trial, 24 women used either a normal green-tea-extract formulation or a specially tannase-converted green-tea formulation on crow’s-feet for eight weeks. Instrumental wrinkle measurements improved more with the tannase-converted preparation, and 63.6% of participants using that preparation reported marked or moderate improvement, compared with 36.3% using the normal green-tea formulation.
This is an important distinction: the 63.6% figure represents the proportion of participants reporting marked or moderate improvement; it does not mean wrinkles were reduced by 63.6%. The study also tested particular green-tea formulations rather than Moon Dew, and Moon Dew’s green-tea extract is not identified as tannase-converted.
Panthenol Pro-Vitamin B5: Research Background
Panthenol, also known as dexpanthenol or pro-vitamin B5, is widely used in topical cosmetic formulations as a humectant and skin-conditioning ingredient.
In a human study, Ferreira et al. (2023) compared a cosmetic formulation containing 5% dexpanthenol with its vehicle in ten healthy women. Measurements two hours after application showed changes in stratum-corneum lipid and keratin organization that the researchers considered compatible with dexpanthenol’s role in maintaining appropriate skin-barrier physiology and limiting transepidermal water loss.
The study used a different 5% dexpanthenol formulation and did not test Moon Dew, so it is best understood as ingredient-level research rather than evidence of a specific clinical effect from this serum.
A Simple Hydration-Focused Routine
Apply Moon Dew after cleansing while the skin is still slightly moist. Once absorbed, continue with your preferred facial moisturizer or balm.
For complementary facial care, explore the Face Care collection, Orange Facial Cleanser and Toner, Facial Cleansing Oil, Wrinkle Skin Cream, and Cleopatra’s Secret Botanical Face Balm.
