Vitamin C is one of the most well-researched ingredients in skincare. It appears on ingredient lists across every price point, in serums, moisturisers, and treatments from budget pharmacy brands to luxury formulations. Most of what you will find is synthetic ascorbic acid. What Dermogains uses is different, and understanding why matters more than most people realise.
Kakadu Plum (Terminalia ferdinandiana) is a native Australian fruit that holds the record for the highest natural Vitamin C concentration of any food source on the planet. Laboratory analysis of fresh Kakadu Plum fruit has found ascorbic acid levels ranging from 2,300 to 3,150 mg per 100 grams, compared to approximately 50 mg per 100 grams in oranges (Netzel et al., 2007; ScienceInsights, 2026). That makes Kakadu Plum roughly 50 to 100 times richer in Vitamin C by weight depending on harvest conditions, fruit maturity, and the measurement method used. A scoping review published in ScienceDirect in 2025 examining the evidence base for Terminalia ferdinandiana in skincare confirmed its exceptionally high concentrations of Vitamin C and diverse phenolic compounds as the basis for its growing use as a cosmetic ingredient. Concentration alone, however, is not the whole story.
What Vitamin C Actually Does in the Skin
As an antioxidant, Vitamin C neutralises reactive oxygen species, the free radicals generated by UV exposure, pollution, and the oxidative stress that training produces at the cellular level. For athletes, this is a genuinely relevant function. High-intensity training generates significant oxidative load, and outdoor training compounds this with UV-driven free radical production.
Vitamin C also plays a role in the skin's natural collagen support processes. It is a required cofactor for the enzymes that synthesise collagen, which means adequate Vitamin C availability supports the skin's ability to maintain the structural proteins that determine its elasticity and resilience. The Food and Nutrition Journal has reported ascorbic acid levels in Terminalia ferdinandiana fruit at significantly higher concentrations than other well-known natural sources including citrus fruit, Acerola, and Camu-Camu, noting the strong antioxidant properties of ascorbic acid in neutralising reactive oxygen species and preventing the generation of new free radicals (Food and Nutrition Journal, 2020). For athletes whose skin is under repeated mechanical and oxidative stress, this dimension of Vitamin C has direct practical relevance.
The Dermogains Formulation Philosophy
At Dermogains, the formulation starts with natural and plant-derived ingredients wherever the evidence supports doing so. When you look carefully at what each ingredient actually brings to the skin, plant-derived sources often deliver considerably more than their isolated synthetic counterparts, and the Vitamin C question makes this point well.
Synthetic ascorbic acid, the form of Vitamin C found in most skincare products, is produced industrially from glucose derived primarily from corn. Global market pricing data puts synthetic ascorbic acid at approximately AUD $4.50 to $5.00 per kilogram (IMARC Group, 2026). Its low production cost is the primary reason the skincare industry defaults to it. The practical problem is that synthetic ascorbic acid is unstable at a neutral pH and must be formulated at a highly acidic pH of 2.5 to 3.0 to remain effective on the skin. The skin's own natural pH sits between 4.5 and 5.5. This gap is a well-documented cause of irritation, redness, and stinging, particularly on skin that already has a barrier compromised by regular training (VETTED Dermlab; Rejuvaus).
Kakadu Plum Extract delivers Vitamin C within a complex natural matrix alongside ellagic acid and gallic acid, two polyphenols with their own documented skin benefits. Peer-reviewed research published in PMC (2025) confirms that ellagic acid helps counteract oxidative stress, supports the preservation of collagen and elastin, and protects skin against photoaging. Gallic acid carries documented antioxidant and antimicrobial properties at the skin surface. Neither of these compounds exists in synthetic ascorbic acid because they are part of the plant, not the isolated molecule. The natural matrix also provides inherent pH compatibility and stability, removing the need for the acidic stabilisers that make synthetic Vitamin C formulations problematic for sensitised and training-stressed skin.
Kakadu Plum is more expensive to source and extract than synthetic ascorbic acid. Dermogains costs more to formulate as a result. That reflects a deliberate choice: when the plant-derived ingredient brings a broader range of bioactive value with a lower irritation risk profile for active skin, there is no good reason to use the cheaper synthetic alternative.
What the Extract Actually Contains
Kakadu Plum Extract delivers Vitamin C alongside a complex of co-occurring bioactive compounds that synthetic ascorbic acid does not provide. The oxygen radical absorbance capacity (ORAC) rating for Kakadu Plum is extremely high, indicating strong antioxidant defence against environmental stressors (CosDNA). A 2021 study suggested Terminalia ferdinandiana may also play a role in supporting skin collagen levels. The Vitamin C in Kakadu Plum Extract is buffered by the surrounding plant compounds, making it less prone to the rapid oxidation that destabilises isolated ascorbic acid, and the co-occurring antioxidants contribute synergistically to the total antioxidant effect.
For Australian athletes, there is also a native ingredient dimension that matters beyond the chemistry. Kakadu Plum is endemic to Australia, wild-harvested from native trees primarily in the Kimberley region of Western Australia and the Northern Territory, and has been used by Indigenous Australian communities for thousands of years. Davidson Plum, also in the Dermogains formulation, is another Australian native with significant antioxidant activity that compounds the Kakadu Plum effect.
Which Is Better?
Both have merit and the comparison is not straightforward. Synthetic ascorbic acid at high concentrations in a well-stabilised formulation has strong clinical evidence behind it. Kakadu Plum Extract provides a broader range of bioactive compounds alongside its Vitamin C content, with inherent stability advantages and a pH profile that is more compatible with skin under training stress.
For a recovery moisturiser designed for daily use after training, working alongside fermented rice protein, pea peptides, shea butter, cocoa butter, and a range of other actives, Kakadu Plum Extract is the well-reasoned choice. The source matters because skincare performance is not just about isolated ingredients at maximum concentration. It is about how those ingredients work within a complete formulation designed for a specific purpose, and for active Australian skin, Kakadu Plum Extract earns its place on both the evidence and the values that sit behind the Dermogains formulation.
References
1. Netzel, M. et al. (2007). Kakadu plum Vitamin C concentration studies. Referenced in Kyomi Skin, Why Kakadu Plum Is a Skin Game-Changer. https://www.kyomiskin.com/blogs/natural-skincare-edit/why-kakadu-plum-is-a-skin-game-changer
2. ScienceInsights (March 2026). What Is Kakadu Plum? Australia's Vitamin C Superfruit. https://scienceinsights.org/what-is-kakadu-plum-australias-vitamin-c-superfruit/
3. Food and Nutrition Journal (2020). Antimicrobial Activity, Total Phenolic and Ascorbic Acid Content of Terminalia Ferdinandiana Leaves at Various Stages of Maturity. https://www.foodandnutritionjournal.org/volume8number3/antimicrobial-activity-total-phenolic-and-ascorbic-acid-content-of-terminalia-ferdinandiana-leaves-at-various-stages-of-maturity/
4. ScienceDirect (2025). Examining the Potential of Terminalia Ferdinandiana (Kakadu Plum) in Photoprotection through Direct and Indirect Evidence: A Scoping Review. https://www.sciencedirect.com/science/article/abs/pii/S1876382025000964
5. CosDNA. Terminalia Ferdinandiana Fruit Extract ingredient analysis. https://www.cosdna.com/eng/e48a7019147.html
6. PMC (2025). An Insight on Ellagic Acid Formulations for the Management of Skin Diseases. https://pmc.ncbi.nlm.nih.gov/articles/PMC12693224/
7. IMARC Group (2026). Ascorbic Acid Price Trend 2026. https://www.imarcgroup.com/ascorbic-acid-pricing-report
8. VETTED Dermlab. Vitamin C Derivatives for Sensitive Skin. https://vetteddermlab.com/blogs/vetted-blog/vitamin-c-derivatives-for-sensitive-skin-a-comprehensive-guide-to-hypoallergenic-skincare-solutions-by-vetted-dermlab
9. Rejuvaus. Can Vitamin C In My Skincare Cause An Allergic Reaction? https://us.rejuvaus.com/blogs/skincare-advice/can-vitamin-c-in-my-skincare-cause-an-allergic-reaction