GUTLEX Postbiotic
Sale price
$129.99
Regular price $95.0
$3.2 per day
30-day supply
Bundle
30-day risk-free guarantee.
Free US shipping.
Gutlex LAB Postbiotic is a science-backed supplement that aids digestion, immunity, and microbiome balance.
Powered by LEX, a Lactobacillus Fermentation Extract developed from natural soybeans and in clinical use across Japan since 1984, Gutlex delivers postbiotic metabolites that get to work right away.
Each box contains 30 servings (10ml bottles) that are:
Antibiotic-compatible: Postbiotics are non-viable metabolites, not live bacteria, so you can take them even during antiobiotic treatment.
40+ years of clinical use: Trusted in 2,700+ medical facilities across Japan, with an extensive research base behind it.
100% plant-based formula: Dairy-free, sugar-free, gluten-free, no artificial additives. Nothing but clean, natural, effective gut support.
Whether you're dealing with bloating, constipation, diarrhea, skin issues, or weakened immunity, Gutlex provides science-based gut support with measurable results.
Serving Size: 1 bottle (0.338 fl. oz/10 ml)
Servings Per Container: 30 bottles
Active Ingredient: Lactobacillus Fermentation Soybean Extract*: 1200 mg
Contains: Soybeans
Other ingredients: Citric acid, lactic acid, water.
Dairy Free
Sugar Free
Gluten Free
No Coloring, Flavoring, Preservatives
Non-GMO
*This is an extract from 16 strains of genus Lactobacillus, including Lacticaseibacillus paracasei, Lactiplantibacillus plantarum, and Levilactobacillus brevis.
15-Day Improvement Course
Reduces bloating, irregular bowel movements, and digestive discomfort during flare-ups or antibiotic treatment.
30-Day Complete Course
Restores digestive regularity and gut barrier, resolving bloating, constipation, diarrhea, heartburn, and food sensitivities.
90-Day System Optimization Course
Resolves stubborn IBS and severe food intolerances while strengthening immunity, clearing skin, boosting energy, and improving mental clarity.
Maintenance Protocol (1 bottle every 2 days)
Maintains microbiome balance and prevents regression with people who lead high-stress lifestyles.
How to Take Gutlex:
Standard: One Drink
Mix one Gutlex bottle (10 ml) with one drink (8-12 oz of water). Drink it in one go if you like a simple, once-a-day habit.
Advanced: Daily Sips
Add one Gutlex bottle (10 ml) to your water bottle. Sip throughout the day to receive the same benefits more gradually.
The Rule:
Consistency is the only requirement. Take it daily. Don’t skip days. That’s how real change happens.
If you'd like to return your order, you have a standard 30-day return window (packaging must be unopened and undamaged).
Not seeing results after a full month? We also offer a money-back guarantee for customers who complete a 1-month course without improvement in digestion. Just make sure you complete our progress surveys first.
For full details, see our [Returns & Refunds Policy].
Same-day* free shipping (continental US).
*On orders issued before 2 PM each day.
Sale price
$129.99
Regular price $95.0Bundle
30-day risk-free guarantee.
Free US shipping.
Gutlex LAB Postbiotic is a science-backed supplement that aids digestion, immunity, and microbiome balance.
Powered by LEX, a Lactobacillus Fermentation Extract developed from natural soybeans and in clinical use across Japan since 1984, Gutlex delivers postbiotic metabolites that get to work right away.
Each box contains 30 servings (10ml bottles) that are:
Antibiotic-compatible: Postbiotics are non-viable metabolites, not live bacteria, so you can take them even during antiobiotic treatment.
40+ years of clinical use: Trusted in 2,700+ medical facilities across Japan, with an extensive research base behind it.
100% plant-based formula: Dairy-free, sugar-free, gluten-free, no artificial additives. Nothing but clean, natural, effective gut support.
Whether you're dealing with bloating, constipation, diarrhea, skin issues, or weakened immunity, Gutlex provides science-based gut support with measurable results.
Serving Size: 1 bottle (0.338 fl. oz/10 ml)
Servings Per Container: 30 bottles
Active Ingredient: Lactobacillus Fermentation Soybean Extract*: 1200 mg
Contains: Soybeans
Other ingredients: Citric acid, lactic acid, water.
Dairy Free
Sugar Free
Gluten Free
No Coloring, Flavoring, Preservatives
Non-GMO
*This is an extract from 16 strains of genus Lactobacillus, including Lacticaseibacillus paracasei, Lactiplantibacillus plantarum, and Levilactobacillus brevis.
15-Day Improvement Course
Reduces bloating, irregular bowel movements, and digestive discomfort during flare-ups or antibiotic treatment.
30-Day Complete Course
Restores digestive regularity and gut barrier, resolving bloating, constipation, diarrhea, heartburn, and food sensitivities.
90-Day System Optimization Course
Resolves stubborn IBS and severe food intolerances while strengthening immunity, clearing skin, boosting energy, and improving mental clarity.
Maintenance Protocol (1 bottle every 2 days)
Maintains microbiome balance and prevents regression with people who lead high-stress lifestyles.
How to Take Gutlex:
Standard: One Drink
Mix one Gutlex bottle (10 ml) with one drink (8-12 oz of water). Drink it in one go if you like a simple, once-a-day habit.
Advanced: Daily Sips
Add one Gutlex bottle (10 ml) to your water bottle. Sip throughout the day to receive the same benefits more gradually.
The Rule:
Consistency is the only requirement. Take it daily. Don’t skip days. That’s how real change happens.
If you'd like to return your order, you have a standard 30-day return window (packaging must be unopened and undamaged).
Not seeing results after a full month? We also offer a money-back guarantee for customers who complete a 1-month course without improvement in digestion. Just make sure you complete our progress surveys first.
For full details, see our [Returns & Refunds Policy].
Same-day* free shipping (continental US).
*On orders issued before 2 PM each day.
Your Gut Health, Tracked & Measured
Take our 2-minute survey before you start to personalize your experience, and watch your gut health improve over time. Think “fitness tracking,” but for your gut!
Gut Health in a Box
A Powerful, Science-Based Gut Ally — Straight From Japan
Gutlex is your gut’s new best friend. It’s a postbiotic designed to support digestion, boost immunity, and restore microbiome balance.
Powered by LEX — a Lactobacillus Fermentation Extract developed from natural soybeans in 1984 — Gutlex has a research base spanning 40+ years.
Clinically proven and science-backed, Gutlex delivers lasting gut balance without the guesswork.
Whether you’re dealing with digestive issues, skin flare-ups, or immune imbalances, Gutlex delivers the (lasting) support you need.
What Gutlex Helps With
Poor Digestion
Gutlex addresses bloating, constipation, diarrhea, and abdominal discomfort head-on. Restoring balance to your gut and reducing inflammation, it helps your digestive system work more smoothly, day after day. It's about getting your gut to function properly, without the guesswork.
Immune System
Your gut is where immunity begins. Gutlex strengthens the gut barrier and helps modulate immune function with targeted postbiotics. This results in improved immune defense and less inflammation, supporting your body’s natural ability to protect itself.
Skin Health
Your skin reflects your gut’s health. By addressing gut inflammation and fostering a healthy microbiome, Gutlex improves skin clarity and reduces breakouts. A balanced gut means a clearer complexion, a more even skin tone, and a better glow.
Lactose & Food Intolerance
Gutlex helps ease lactose intolerance and food sensitivities by supporting your gut’s ability to break down lactose. The same key metabolites produced during fermentation can assist with lactose digestion. These postbiotics help reduce inflammation, improve gut health, and make it easier for you to process problem foods with less discomfort.
Real Customer Stories
Share the Gutlex Love & Earn Rewards
Join our referral programs for influencers, healthcare professionals, dealers, or refer friends. Share Gutlex with the people you care about — and get rewarded for it!
Got Questions? We’ve Got Answers!
It’s simple: Just mix Gutlex with 8-12 ounces of water and drink it all in one go or add it to your water bottle and sip throughout the day.
Most customers start feeling better in just 1-2 weeks. It varies, but we guarantee results in 30 days.
That depends on what you're looking to get from Gutlex. Generally, we like to divide it into these four courses:
15-Day Improvement Course
Reduces bloating, irregular bowel movements, and digestive discomfort during flare-ups or antibiotic treatment.
30-Day Complete Course
Restores digestive regularity and gut barrier, resolving bloating, constipation, diarrhea, heartburn, and food sensitivities.
90-Day System Optimization Course
Resolves stubborn IBS and severe food intolerances while strengthening immunity, clearing skin, boosting energy, and improving mental clarity.
Maintenance Protocol (1 bottle every 2 days)
Maintains microbiome balance and prevents regression with people who lead high-stress lifestyles.
Absolutely! Gutlex is 100% natural and can be taken alongside most supplements. But you may experience some discomfort during the first week or two.
Yes. Gutlex contains no allergens: it’s a product of extended fermentation, and that fermentation process breaks down allergenic compounds. That said, if you have a soy allergy, we recommend consulting your physician before use.
Yes! Postbiotics like Gutlex actually work WITH antibiotics and don't get destroyed by them like probiotics. What's more, they can improve treatment success, cut side effects in half, and accelerate recovery.
Gutlex is actually recommended by many physicians for pregnant women to help balance digestion during pregnancy. It is completely safe during both pregnancy and breastfeeding, for mothers and newborns. Of course, as you’re growing your family, it’s always best to check with your physician before starting any new supplement.
Yes! You have two options. If you'd like to return your order, you have a standard 30-day return window (packaging must be unopened and undamaged).
Not seeing results after a full month? We also offer a money-back guarantee for customers who complete a 1-month course without improvement in digestion. Just make sure you complete our progress surveys first.
For full details, see our [Returns & Refunds Policy].
