Most people think about skin health from the outside in: cleansers, serums, moisturisers, sunscreen. But a growing body of peer-reviewed research points in the other direction. The gut-skin axis, a term now established in dermatological literature, describes a bidirectional communication network between the gastrointestinal tract and the skin, mediated by immune, metabolic, and microbial pathways. (Jimenez-Sanchez et al., Gut Microbes, 2025.)
What happens inside the digestive tract does not stay there. Intestinal dysbiosis, increased permeability, and systemic inflammation originating in the gut can trigger or exacerbate skin conditions including acne, eczema, psoriasis, and rosacea. Understanding this connection changes the conversation about what 'skin care' actually means.
What the Research Says
A 2025 review published in the International Journal of Molecular Medicine examined the bidirectional communication between gut microbiota and skin health, concluding that advances in sequencing technology have substantially enhanced understanding of the gut microbiome's role in skin pathology. The authors noted that gut microbiome dysbiosis is a key driver of systemic inflammation that impacts both gut and skin. (Zhao et al., International Journal of Molecular Medicine, 2025.)
A separate 2025 review in Gut Microbes further established the gut-skin axis as a two-way signalling pathway in which intestinal dysbiosis, endotoxins from increased permeability, and microbially produced metabolites can trigger cytokine cascades that manifest in the skin. (Jimenez-Sanchez et al., Gut Microbes, 2025.)
How Bone Broth Supports Both Gut and Skin
Gelatin and the Gut Barrier
Gelatin from bone broth provides glycine, proline, and hydroxyproline, the amino acids that support both intestinal barrier integrity and collagen synthesis in the skin. When the gut barrier is functioning well, fewer inflammatory triggers reach the bloodstream and, by extension, the skin. Supporting gut barrier function through dietary gelatin is one of the simplest nutritional interventions available.
Glycine and Inflammation
Glycine, the most abundant amino acid in gelatin, has documented anti-inflammatory properties. Chronic low-grade inflammation is a common driver of skin conditions. By contributing to normal inflammatory regulation through dietary intake, glycine from bone broth supports both digestive and skin health simultaneously.
Chicken Liver Capsules: The Skin Nutrient Stack
BBBB Organic Chicken Liver Capsules deliver vitamin A (retinol), zinc, and B vitamins, all of which contribute to normal skin function. Vitamin A is essential for skin cell turnover and repair. Zinc contributes to normal skin structure and wound healing. Riboflavin (B2) contributes to the maintenance of normal skin. These nutrients, combined with the gelatin and amino acids from bone broth, form a comprehensive whole-food approach to skin health that works from the inside out.
The Glow Stack bundle (one bottle of capsules plus one bone broth sachet pack) is specifically designed for this purpose: nutrient density from liver, amino acids and gelatin from broth, working together across both sides of the gut-skin axis.
Frequently Asked Questions
Does gut health affect skin?
Yes. Peer-reviewed research describes a bidirectional communication network between the gut and skin called the gut-skin axis. Intestinal dysbiosis and increased gut permeability can trigger systemic inflammation that manifests in skin conditions including acne, eczema, and psoriasis.
Can bone broth help with skin health?
Bone broth provides gelatin-derived amino acids (glycine, proline, hydroxyproline) that support both gut barrier integrity and collagen synthesis in the skin. By supporting the gut side of the gut-skin axis, bone broth contributes to conditions that support normal skin function.
What nutrients are best for skin?
Vitamin A (retinol), zinc, riboflavin (B2), and glycine are among the nutrients most relevant to normal skin function. Chicken liver is one of the richest whole-food sources of vitamin A, zinc, and riboflavin. Bone broth is one of the richest dietary sources of glycine and gelatin.
What is the Glow Stack?
The Glow Stack is a BBBB bundle that pairs one bottle of Organic Chicken Liver Capsules with one Bone Broth Sachet Pack. It combines nutrient density (liver) with amino acids and gelatin (broth) for a whole-food approach to skin and gut health.
Where can I buy the Glow Stack in Australia?
The Glow Stack is available online at the Byron Bay Bone Broth website with delivery across Australia. The Founders Club subscription offers the best value at 20% off.
References
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Jimenez-Sanchez M et al. The gut-skin axis: a bi-directional, microbiota-driven relationship with therapeutic potential. Gut Microbes. 2025;17(1):2473524.
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Zhao Y et al. The gut-skin axis: Emerging insights in understanding and treating skin diseases through gut microbiome modulation. International Journal of Molecular Medicine. 2025;56:210.
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Chai J et al. Editorial: The gut-skin axis: interaction of gut microbiome and skin diseases. Frontiers in Microbiology. 2024;15:1427770.
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Food Standards Australia New Zealand. Australian Food Composition Database. foodstandards.gov.au. Accessed: July 2026.
