Can Prebiotic Fibre Improve Your Skin?
New Research Says Yes
When most people think of skincare, they think of creams, serums, and facials. But new science suggests that healthy, radiant skin may begin in the gut.
A 2025 clinical study found that a simple plant-based prebiotic fibre — Partially Hydrolysed Guar Gum (PHGG) — can significantly improve skin hydration, elasticity, and barrier strength.
The Study: PHGG and Skin Health
Published in the Journal of Clinical Biochemistry and Nutrition (Kapoor et al., 2025), this randomized, double-blind, placebo-controlled trial followed 70 healthy men and women over 12 weeks. Participants consumed either 5g of PHGG daily or a placebo.
Results were striking:
- Improved hydration – skin retained more moisture, even during the dry winter season.
- Reduced trans-epidermal water loss (TEWL) – the skin barrier became stronger at locking in moisture.
- Better elasticity – skin appeared more supple and resilient.
- High satisfaction – participants reported visible improvements with no side effects.
In short: daily PHGG helped support softer, smoother, healthier-looking skin — from the inside out.
Why Gut Health Matters for Skin
The gut and skin are linked through what’s known as the gut–skin axis. When the gut microbiome is balanced, inflammation decreases and the skin’s natural defences improve.
Here’s how prebiotic fibres like PHGG play a role:
- They feed beneficial gut bacteria,
- Which produce short-chain fatty acids (SCFAs),
- SCFAs help regulate hydration, elasticity, and barrier function in the skin.
This means nourishing your gut may be just as important as your skincare routine for achieving a healthy glow.
Where to Find PHGG
Wonder Foods PHGG is a premium, taste-free prebiotic fibre that dissolves easily into water, smoothies, or food. It’s:
- Gentle on digestion,
- Suitable for daily use,
- Backed by research for gut and skin benefits.
Lifestyle Matters Too
Nutrition is only one piece of the puzzle. Daily movement & exercise helps improve circulation, reduce stress, and support detoxification — all of which positively influence skin health.
Pairing good nutrition with regular exercise helps create true inside-out vitality.
Takeaway
If you’re looking for a natural way to improve skin hydration, elasticity, and barrier function, PHGG may be the missing link between your gut and your glow.
Safe, simple, and now backed by clinical evidence, it’s an easy addition to your daily routine.
Disclaimer: Wonder Foods offers this post for educational purposes only. Please consult your Health Practitioner for personalised and specific information.
