🦠 Beneficial Probiotic · Immune Modulator
Lactobacillus paracasei: Your Gut's Allergy and Skin Defender
L. paracasei stands out for its ability to modulate allergic and skin inflammatory responses. Clinical trials show it reduces eczema severity, hay fever symptoms, and supports overall immune tolerance.
✓ Beneficial probiotic
🧬 Detectable by PCR stool test
🏥 No referral needed
Skin +
Immune
Immune
dual-action
allergy defence
allergy defence
Medically Reviewed
Dr. Samantha Naidoo
MB ChB, FCP (SA) · Medical Director, Epicentre Laboratories
Last reviewed: 19 March 2026
At a glance
Why does L. paracasei matter?
🔥
reduces eczema severity in clinical trials
Skin-gut connection
🤧
modulates allergic immune responses
Allergy specialist
🛡️
survives stomach acid and colonises effectively
Robust coloniser
↓ Low
in atopic dermatitis and allergic rhinitis
Allergy populations
PCR
detectable in all Epicentre gut tests
Walk-in or home kit
Could Your L. paracasei Levels Be Low?
6 quick questions. Not a diagnosis, but it may help you decide whether testing is worthwhile.
How it works
What does L. paracasei actually do in your gut?
🔥
Reduces allergic inflammation
Shifts immune responses away from allergic (Th2) pathways. Clinical trials show reduced eczema severity and hay fever symptoms with L. paracasei supplementation.
💪
Modulates immune tolerance
Trains the immune system to tolerate harmless substances rather than overreacting. Reduces IgE (allergy antibody) production.
🛡️
Robust gut coloniser
Survives stomach acid and bile effectively. Competes aggressively with pathogens for attachment sites on the gut wall.
🍳
Ferments diverse substrates
Breaks down a wide range of carbohydrates, supporting SCFA production and gut health across varied diets.
Warning signs
What happens when L. paracasei levels are low?
Bloating and gas after meals
Irregular bowel movements
Increasing food sensitivities
Abdominal discomfort
Reactions to foods previously tolerated
L. paracasei connects your gut to your skin and immune system. When levels are low, the immune system overreacts to harmless substances, showing up as skin inflammation and allergies.
Eczema flares, dry patches, or itchy skin
Worsening hay fever or seasonal allergies
Fatigue from chronic immune overactivation
Hives or unexplained skin reactions
General inflammation and feeling unwell
Low L. paracasei is not a disease in itself, but it is consistently found in people with these conditions.
Atopic dermatitis: L. paracasei supplementation reduces eczema severity scores
Allergic rhinitis: reduces nasal symptoms and quality-of-life scores in hay fever
Food allergies: modulates immune tolerance to dietary antigens
Asthma: emerging evidence for airway inflammation reduction
IBS: anti-inflammatory properties support symptom management
"
"For patients with eczema or allergies alongside gut symptoms, L. paracasei is my go-to recommendation. The gut-skin axis is real, and modulating immune tolerance from the gut often improves skin faster than topical treatments alone."Dr. Samantha Naidoo, MB ChB, FCP (SA), Medical Director, Epicentre
What happens over time
The progression of low L. paracasei
1
Trigger: antibiotics, environmental allergens, or processed diet
Antibiotics reduce L. paracasei. Environmental allergen exposure without adequate immune tolerance tips the balance. Sugar-heavy diets compound the problem.
2
Immune tolerance declines
The immune system begins overreacting to harmless substances. Mild allergic symptoms appear or worsen.
3
Skin and respiratory symptoms escalate
Eczema flares, hay fever worsens, food sensitivities multiply. The gut-skin axis amplifies the immune overreaction.
4
Chronic allergic inflammation
Sustained Th2 immune dominance drives ongoing skin inflammation, respiratory symptoms, and gut discomfort.
5
Self-reinforcing allergy cycle
Inflammation in the gut further depletes L. paracasei. Each trigger worsens the next response. Testing identifies the starting point.
The good news: L. paracasei is available as a supplement with clinical evidence for skin and allergy improvements. Many people see measurable reduction in eczema and allergy symptoms within 4 to 8 weeks.
Take action
How to boost your L. paracasei levels
Fermented foods
Yoghurt, kefir, kimchi, sauerkraut, and fermented pickles. L. paracasei occurs naturally in many fermented products.
Prebiotic fibre
Garlic, onions, bananas, oats feed beneficial lactobacilli.
Targeted supplement
Look for L. paracasei strains with clinical allergy evidence. Take consistently for at least 8 weeks.
Reduce processed foods
Additives and preservatives in processed food can disrupt immune tolerance.
Diverse plant diet
30+ plants per week supports the microbial diversity needed for immune balance.
Manage stress
Stress-driven cortisol shifts immune balance towards allergic responses.
Testing
Test your L. paracasei levels at Epicentre
All three Epicentre gut packages include L. paracasei quantification. No referral needed. Walk in or test at home.
Gut Essentials
✓ Includes L. paracasei
17 probiotic species mapped and quantified.
R1,995
~R499/mo with Payflex · 5% student discount
Complete Gut Profile
✓ Includes L. paracasei + 44 more targets
Full picture: probiotics, pathogens, parasites, fungi, H. pylori.
R4,850
~R1,213/mo with Payflex · 5% student discount
Gut Deep Dive
✓ Includes L. paracasei + disease associations
Everything in the Complete Profile plus disease association analysis.
R5,620
~R1,405/mo with Payflex · 5% student discount
Common questions
Frequently asked questions about L. paracasei
Can I take L. paracasei as a supplement?
Yes. Several L. paracasei strains have clinical evidence for eczema and allergy management. Look for products specifying the strain and take consistently for at least 8 weeks to allow immune modulation.
What foods contain or support L. paracasei?
Found naturally in fermented vegetables, fermented dairy, and some aged cheeses. Prebiotic foods support existing populations.
How long does it take to restore L. paracasei levels?
With dietary changes and supplementation (where applicable), most people see measurable improvements within 4 to 8 weeks. A follow-up gut test confirms progress.
Do I need a doctor's referral for gut testing?
No. Walk into any Epicentre branch in Durban (Hillcrest), Cape Town (Observatory), or Johannesburg (Parktown North). Or order a home stool collection kit delivered to your door in discreet packaging with prepaid return.
How much does a gut test cost?
Gut Essentials (17 probiotic targets): R1,995. Complete Gut Profile (45 targets): R4,850. Gut Deep Dive (45 targets + disease associations): R5,620. All prices include VAT. Payflex instalments available. Students get 5% off.
Find Out Where Your L. paracasei Stands
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← Full Gut Health Guide
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