The quality standards that shape AG1

From sourcing to final formula, AG1 is made to strict quality standards and routinely screened for contaminants and impurities, delivering the safety and consistency your routine depends on

Third-party certifications

AG1 is certified by both the Cologne List® and Informed Sport – two of the world’s most respected independent programmes for dietary supplement testing.

These certifications confirm that AG1 is regularly screened for more than 350 banned substances, including stimulants, narcotics, diuretics and masking agents – helping ensure it’s safe for both athletes and everyday users.

But it goes beyond banned substance testing. The Informed Sport quality seal also means AG1 is manufactured in facilities that meet strict international quality and safety standards, with robust systems in place to prevent contamination and ensure consistency – batch after batch.

Certificate of analysis

With our strict specifications and extensive testing range, AG1’s quality testing exceeds industry standards.

Every batch is rigorously tested for microbiological purity, stricter than statutory heavy metal limits, allergens and other contaminants. In addition, AG1 is annually tested for an even wider range of contaminants like over 500 pesticides, herbicides and other harmful substances.

The Certificate of Analysis (COA) is a document that contains a summary report of all independent testing done on AG1 by third-party ISO-certified labs. The CoA indicates whether the tests passed the legally established safety limits, or the sometimes even stricter limits set by AG1. The actual measured values can be well below.

SEE THE RESULTS:

Heavy metals

Anything that comes from the ground, including fruits, vegetables, and even drinking water, has the potential to naturally contain some heavy metals.

To ensure safety, AG1 is regularly tested for heavy metal levels in accordance with the limits set by the European Commission in EU Regulation 2023/915.

THIS INCLUDES:

  • Lead

  • Mercury

  • Cadmium

  • Arsenic

Allergens

We do not formulate with wheat, dairy, egg, or peanut-containing ingredients. Plus, our manufacturing facilities adhere to strict allergen and validated cleaning protocols, to reduce chances of cross-contamination.

WE TEST FOR COMMON ALLERGENS:

  • Gluten (Wheat, Rye, Barley) (<20ppm)

  • Milk

  • Egg

  • Peanut

Pesticides & herbicides

Chemicals used in agriculture can disrupt the gut and immune system, decreasing or even blocking nutrient absorption.

We select our suppliers based on strict internal standards. In addition, we regularly carry out independent testing for pesticides and herbicides – to ensure our requirements are met and that the limits defined by the European Commission in EU Regulation (EC) No 396/2005 are observed.

TESTS INCLUDE:

  • Glyphosate: an herbicide and commonly used weed killer in conventional farming

  • AMPA: a byproduct of glyphosate

Microbes & toxins

Microbial testing is crucial for ensuring AG1 is safe to drink on a long-term daily basis.

WE RULE OUT:

  • Harmful bacteria, including Salmonella, E. coli, and Staphylococcus.

  • Molds and yeasts that have been linked to immune disruption.

  • Microbes that can produce toxic substances like mycotoxins and aflatoxins.

Banned substances

Professional and Olympic athletes have trusted AG1 for over a decade. To reduce the risk of contamination or adulteration, AG1 is independently tested for more than 350 banned substances as part of both the Cologne List® and Informed Sport certification programmes.

These programmes focus on substance classes most commonly associated with contamination in supplements, including:

WHAT IS TESTED?

  • Anabolic agents

  • Stimulants

  • Beta-2 agonists

  • Diuretics and masking agents

  • Selective androgen receptor modulators (SARMs)

  • Hormone and metabolic modulators

  • Cannabinoids

  • Narcotics

Residual solvents

Residual solvents are volatile chemicals that can result from processing procedures such as extraction of plant parts and purification of ingredients. While testing for residual solvents was initially developed for pharmaceuticals, as part of our quality, AG1 is tested for all 3 classes of solvents, including acetone and ethanol.

Nutritional testing

AG1 tests for nutritional content to ensure that the amounts stated on the label are what you get in the product. Nutritional testing is vital to ensuring the efficacy of the formula, and that you receive what you are paying for.

Sensory experience

Taste is an obsession of ours. Every batch of AG1 undergoes a systematic evaluation of sensory characteristics like aroma, taste, mouthfeel, and aftertaste. We conduct a science-based sensory testing program with a third-party to ensure the consistency of the AG1 flavour.

The best part? The flavour of AG1 comes entirely from natural ingredients – with no artificial flavours or sweeteners.

AG1 DOES NOT INCLUDE:

  • Artificial sweeteners

  • Added sugar

  • Erythritol

  • Monk fruit

  • MSG

Built on research, lived by people worldwide

Florian

AG1 MEMBER SINCE 2024

“I’ve been drinking AG1 since 2024 and already noticed more focus in the first days – I even swapped my morning espresso for it.◊ For me, AG1 gives a sense of security: I know my body and immune system are supported, and when I get on the bike, I can switch off completely.◊”

Patrizia

AG1 MEMBER SINCE 2024

“My daily ritual is swimming 1,000 metres – I’ve completely reshaped my nutrition for it, and AG1 is a big part of that. Since then, I feel fit, energised, and I know my body is consistently supported.◊”

Sanja

AG1 MEMBER SINCE 2022

"For three years now, I've started my day with AG1 – always with lemon and ice. The ritual gives me focus and clarity for the day, my nails are strong and I stay fit, even in stressful times.◊"

Witold

SURVEY FEEDBACK↡

"Seems promising, but it's been only a few days since I am taking it.◊"

Harry

SURVEY FEEDBACK↡

"First positive effects: I no longer feel tired during the day and I feel focused and concentrated.◊"

Annapurna

SURVEY FEEDBACK↡

"I see a change in my energy, my mood, focus, amount of food needed.◊"

Mina

SURVEY FEEDBACK↡

"I feel good and feel that I’m starting my day with a better and healthier habit.◊"

Robert

SURVEY FEEDBACK↡

"Good in bowel movements, energetic.◊"

Liane

SURVEY FEEDBACK↡

"I feel slightly more motivated. Less cravings and when I binged the other day I felt really sick, my body didn't enjoy it at all.◊"

Stefanie

SURVEY FEEDBACK↡

"I no longer have a constant feeling of being bloated, it's completely gone.◊"

Rike

SURVEY FEEDBACK↡

"My skin has fewer impurities.◊"

Get started with AG1 today
AG1 Pouch (30 Servings)
2,60 £/serving
£79
FIRST PURCHASE INCLUDES:
Welcome Kit
AG1 shaker, scoop, and stainless steel canister
free
£28
Vitamin D3+K2
1 bottle – separate for optimal absorption and flexible dosing
free
£25
5 Travel Packs
Single-serve daily portions for on the go
free
£15
Morning Person hat
The hat money can't buy, free with your order
free
£14
Total
£79
£161
Free delivery
Flexible subscription
30-day money-back guarantee

FAQs

Heavy metals can occur naturally in many whole foods. Anything that comes from the ground, including fruits, vegetables, and even drinking water, has the potential to contain some heavy metals and amounts can vary based on the soil content and geographical location of the source material. Our raw materials and every batch of AG1 is rigorously tested to ensure there are no unsafe levels of contaminants, including lead and other heavy metals, and that we always comply with legal limits . With this process we constantly ensure the consistently high quality of AG1's ingredients.

More about AG1

© 2026 AG1

Food supplements are not a substitute for a balanced and varied diet and a healthy lifestyle. Do not exceed the indicated daily intake. Keep out of reach of children. Please inform and consult your doctor before consuming this product. Not suitable for children and adolescents under 18 years, pregnant or breastfeeding women. Refrain from taking other food supplements containing zinc. Persons taking anticoagulant medication should seek medical advice before consuming vitamin K-containing supplements.

* Genuine reviews from customers who received a review link after purchase.

** Offer valid for new subscribers only. The total value of the one-time purchase and Welcome Kit, including AG1 and the hat, is £161, reduced to £79. Free shipping does not apply to customers in Switzerland and Norway.

↡ Ongoing survey of 3,000+ AG1 customers after 12+ days of use, 2024.

§ In a third-party, observational study conducted on 35 healthy adults ages 25-48 assessing the self-perceived efficacy of AG1 over the course of 3 months. The study was conducted on a similar version of AG1's continually evolving formulation. The study results are transferable because of comparable ingredients and amounts.

○ Ongoing survey of customers from 12 European countries who have been taking AG1 for an average of 9 days.

⬥ Comparison (2025) with individual supplements in comparable amounts that are typically sold at retail: vitamin B complex, vitamin A, vitamin C, vitamin E, bacterial cultures, zinc, magnesium, calcium, selenium, chromium, manganese, molybdenum, coenzyme Q10, greens powders (from sea algae such as spirulina, barley leaf, wheatgrass, dandelion, spinach powder, etc.), mushroom supplements (reishi, shiitake). AG1 monthly price for single subscription (£79) calculated down to 30 daily portions. The comparison prices are the average prices per daily portion of three individual products (where available) available online in September 2025 (sample selection) for each compared category, each with identical ingredients. To ensure a fair basis for comparison, where the comparison products have different dosages, the prices were mathematically adjusted to correspond to the dosage contained in AG1. The amounts for the B complex may vary slightly. For the greens powders and the mushroom complex, the prices were compared per daily dose, quantities and ingredients vary and are not 100% identical.

Research Studies
a. In a triple-blind, randomised, placebo-controlled parallel-designed clinical trial evaluating nutrient biomarkers and microbiome shifts in 105 healthy adults ages 20-59 over the course of 12 weeks.
b. In a double-blind, randomised, placebo-controlled 2-week cross-over clinical trial assessing microbiome shifts in 20 active adults ages 19-37.
c. In a double-blind, randomised, placebo-controlled 2-week cross-over clinical trial assessing microbiome shifts of 24 healthy adults with occasional GI distress ages 26-59.
d. In a double-blind, randomised, placebo-controlled cross-over clinical trial assessing bioavailability in 16 healthy adults ages 18-42 over the course of 8 hours.
The studies were conducted on a similar version of AG1's continually evolving formulation. The transferability of the study results is ensured because of comparable ingredients and amounts.

◊ Key health benefits:

(1) Immune system: With vitamins A, C, B6 and B12 as well as folate, zinc, copper and selenium, AG1 contributes to the normal function of the immune system. Vitamin C contributes to maintain the normal function of the immune system during and after intense physical exercise. 200 mg Vitamin C taken daily in addition to the recommended daily dose (80 mg) contributes to the normal function of the immune system during and after intensive physical activity.

(2) Energy levels: Vitamins C, B6, B12, riboflavin, niacin, pantothenic acid and magnesium contribute to normal energy-yielding metabolism and to the reduction of tiredness and fatigue. Magnesium contributes to electrolyte balance. Biotin, zinc and chromium contribute to normal macronutrient metabolism.

(3) Digestion: Calcium contributes to the normal function of digestive enzymes. With vitamin A, biotin, riboflavin and niacin, AG1 contributes to the maintenance of normal mucous membranes (e.g. intestinal mucosa).

(4) Focus; Mental performance; Psychological function; Nervous system: With pantothenic acid, AG1 contributes to normal mental performance. Zinc contributes to normal cognitive function. With vitamins C, B6, B12, B1, B3 and B7 AG1 contributes to normal psychological function and to normal functioning of the nervous system. Calcium contributes to normal neurotransmission.

‡ Additional health benefits:

(5) Muscles: With calcium and magnesium, AG1 contributes to normal muscle function.

(6) Cell Protection: With vitamins E and C as well as riboflavin, zinc, copper and selenium, AG1 contributes to the protection of cells from oxidative stress. Phosphorus contributes to normal function of cell membranes. Folate, Vitamin B6 and B12 contribute to normal homocysteine metabolism.

(7) Skin, hair & nails: With vitamins A, as well as riboflavin, niacin, biotin and zinc, AG1 contributes to the maintenance of normal skin. Vitamin C contributes to normal collagen formation for the normal function of skin. Copper contributes to normal connective tissue. Vitamin B7, zinc and selenium contribute to the maintenance of normal hair. Zinc and selenium contribute to the maintenance of normal nails.

(8) Hormonal system: With vitamin B6, AG1 contributes to the regulation of hormonal activity. Zinc contributes to the maintenance of normal testosterone levels in the blood. Selenium contributes to the normal thyroid function. With chromium, AG1 contributes to the maintenance of normal blood glucose levels.

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