The science
F-Balm's formulation strategy centers on two converging approaches to barrier repair: exogenous lipid replacement and endogenous lipid stimulation.
The five-ceramide complex (NS, AP, EOS, NP, EOP) provides the exogenous component. Ceramides constitute approximately 50% of the stratum corneum's intercellular lipids, and their depletion is directly associated with barrier dysfunction, increased transepidermal water loss, and conditions like atopic dermatitis. Systematic reviews, including Lynde et al. (2023), have confirmed that ceramide-containing moisturizers effectively improve barrier function and reduce symptoms in atopic dermatitis.
The endogenous component comes from niacinamide. A foundational study by Tanaka et al. in the British Journal of Dermatology (2000) demonstrated that nicotinamide increases biosynthesis of ceramides, glucosylceramides, sphingomyelin, and free fatty acids in the stratum corneum. At the estimated 3-4% concentration in F-Balm, niacinamide is working above the 2% threshold typically considered effective for barrier enhancement. More recent work by Tanno et al. (Scientific Reports, 2025) showed that niacinamide enhances water uptake in the stratum corneum and has a plasticizing effect on the barrier, improving skin flexibility — particularly relevant for overnight application when the skin's repair processes are most active.
The 'electrolyte' claim rests on sodium PCA and magnesium PCA. Sodium PCA is a well-characterized component of the skin's Natural Moisturizing Factor (NMF) — the hygroscopic mixture that maintains stratum corneum hydration. As a derivative of the amino acid glutamic acid, it naturally exists in healthy skin at concentrations that decline with age and environmental damage. Magnesium PCA adds the mineral cofactor that supports enzymatic processes in keratinocyte differentiation. While the 'electrolyte' label is a marketing concept rather than a clinically validated complex, the individual ingredients have legitimate humectant and barrier-supportive properties.
Squalane, the formula's primary emollient, mimics squalene — a natural component of human sebum that constitutes approximately 12% of skin surface lipids. Its inclusion provides occlusive protection that prevents the loss of the humectants and ceramides being delivered to the barrier.
The dual-weight hyaluronic acid system (standard sodium hyaluronate plus a crosspolymer form) provides sustained hydration. The crosspolymer's higher molecular weight creates a reservoir effect, releasing moisture gradually through the extended overnight wear period rather than delivering it all at once.
References 3 ShowHide
- Nicotinamide increases biosynthesis of ceramides as well as other stratum corneum lipids to improve the epidermal permeability barrier. — British Journal of Dermatology (2000)
- Niacinamide and its impact on stratum corneum hydration and structure. — Scientific Reports (2025)
- Niacinamide - mechanisms of action and its topical use in dermatology. — Skin Pharmacology and Physiology (2014)