Everything you should know.
Gutheory started with a simple frustration: finding supplements with clean, honest ingredient lists wasn't easy.
We wanted products that focused on carefully selected ingredients instead of unnecessary additives. So we decided to build them ourselves.
We built Gutheory around a simple idea: you should understand what you're putting into your body.
Every formula starts with carefully selected ingredients and ends with complete transparency. No exaggerated claims. No unnecessarily complicated ingredient lists. Just thoughtfully developed supplements that are easy to understand and easy to trust.
Because ingredient lists shouldn't be hidden.
Most supplement brands put marketing on the front and ingredients on the back. We do the opposite. We want you to know what's inside before anything else.
Because we think honesty should be visible.
Our packaging is designed to make choosing simpler - not to distract you with buzzwords or oversized marketing claims. Everything you need to know is right where you can see it.
You'll never find artificial sweeteners, sugar alcohols, unnecessary fillers or thickeners in our formulas.
We choose every ingredient carefully and keep every formula as simple as possible - because clean nutrition shouldn't need unnecessary extras.
Share information about your products, policies or services.
Gutheory is a Swedish brand.
Our products are produced by carefully selected manufacturing partners in Sweden and Belgium who meet strict European food safety and quality standards. We choose our partners for one reason: because they share our commitment to quality.
Quality starts long before production.
We spend months selecting ingredients, refining formulas and working with experienced manufacturing partners. Every batch is produced under strict European quality and food safety standards before it reaches you.
Yes. That's exactly what they're designed for.
Our products are made to fit naturally into your daily routine. Simply follow the recommended serving size. If you're pregnant, breastfeeding, taking medication or have a medical condition, consult your healthcare professional before use.
Questions? We're here.
Whether it's about a product, your order or anything else, we'd love to hear from you.
Email: hello@gutheory.com
Delivery & Returns
Right now, we ship within Sweden.
International shipping is something we're actively working on and hope to offer soon. If you'd like to be notified when we launch in your country, join our newsletter or follow us on Instagram.
Orders are typically dispatched within 1–2 business days.
Once your order has shipped, you'll receive a confirmation email with tracking information so you can follow your delivery every step of the way.
As soon as your order leaves our warehouse, we'll send you a shipping confirmation with a tracking link.
If you haven't received it, check your spam folder or contact us and we'll be happy to help.
Yes - provided your order hasn't been packed or shipped yet.
Contact us as soon as possible at hello@gutheory.com, and we'll do our best to cancel your order before it's dispatched.
If your order hasn't been processed or shipped yet, please contact us as soon as possible at hello@gutheory.com. We'll do our best to help you change or cancel your order before it's dispatched.
If your order has already been shipped, we're unfortunately unable to make any changes. In that case, our Returns & Refund Policy applies.
Yes. As a consumer, you have the right to return your order within 14 days of receiving it, in accordance with our Returns & Refund Policy.
For health and hygiene reasons, we can only accept returns of unopened products with the original seal intact, unless the product is faulty or damaged.
If you choose to return your order, you are responsible for the return shipping costs. If you use our prepaid return label, a fee of 79 SEK will be deducted from your refund.
If you'd like to make a return, please contact us at hello@gutheory.com before sending your product back, and we'll guide you through the process.
We're sorry to hear that.
If your order was damaged during transit or you received the wrong product, please contact us at hello@gutheory.com within 48 hours of receiving your delivery.
To help us resolve your case as quickly as possible, please include:
• Your order number
• A brief description of the issue
• Clear photos of the product and the packaging
We'll review your case as soon as possible and get back to you with a solution