If a Monster Energy drink tastes unusual, has lost carbonation, arrived in a swollen or damaged can, appears to contain foreign material, or caused a suspected reaction, stop using the product and contact the correct support channel. Keep the can, remaining product, packaging and receipt when it is safe to do so because Monster may request production and purchase details.
Monster Energy Customer Service Contact Information
- Monster Energy customer service: 1-866-322-4466
- Customer-service hours: Monday-Friday, 8 a.m.-5 p.m. Pacific Time
- Monster Beverage Consumer Relations: 1-800-426-7367
- Official contact form: Contact Monster Energy
- Product FAQs: Monster Energy FAQs
- Official website: MonsterEnergy.com
Monster’s official page labels its hours as 8 a.m.-5 p.m. PST. Representative availability may change on holidays. Monster Beverage Corporation’s Consumer Relations form states that online responses are typically sent within a few business days, but this is not a guaranteed resolution time.
Choose the Correct Monster Energy Support Route
- Unusual taste or loss of carbonation: Use Monster’s product-problem contact form.
- Swollen, leaking, punctured or damaged can: Do not consume it. Preserve it safely and contact Monster.
- Foreign material or debris: Stop consuming the product and report the issue directly to Monster with the can and production information.
- Ingredient or caffeine question: Check the exact label and use Monster’s product-question route.
- Ordinary store return or refund: Start with the retailer that accepted payment.
- Missing delivery or damaged shipment: Contact the retailer or delivery service responsible for the order.
- Promotion or prize issue: Use Monster’s promotion-inquiry category and review the promotion’s official rules.
- Sponsorship request: Use the sponsorship category rather than the product-complaint form.
- Medical emergency: Call 911.
- Possible poisoning or excessive caffeine exposure: Contact Poison Control at 1-800-222-1222.
Information to Gather Before Contacting Monster
- The exact Monster brand and flavor
- The can or bottle size
- The package size
- The printed can code
- The production code
- The manufacturing-facility logo, when shown
- The purchase date
- The store, restaurant or website where it was purchased
- The number of affected products
- Photographs of the can, packaging and claimed problem
- The receipt or order confirmation
- A previous Monster case or reference number
Provide these details privately through Monster’s official support channel. Do not publish medical information, claim numbers, complete codes, receipts or personal contact information in a public review.
How to Report a Monster Energy Product Problem
- Stop consuming the product if it tastes wrong, smells unusual, is contaminated or comes from a damaged container.
- Keep the can, remaining liquid, packaging and receipt when doing so is safe.
- Photograph the product, damage and printed codes.
- Do not open a swollen can or handle a leaking container unnecessarily.
- Submit the official Monster contact form or call 1-866-322-4466.
- Describe what happened without guessing at the cause.
- Ask whether Monster wants the product retained, discarded or shipped for inspection.
- Do not mail the can or liquid until Monster provides authorization and current shipping instructions.
- Save the case number and all correspondence.
Opening a complaint does not guarantee a refund, replacement, coupon, reimbursement or particular investigation result.
Damaged, Swollen or Leaking Monster Cans
Do not drink from a can that is swollen, severely dented at a seam, leaking, punctured, rusted, visibly contaminated or appears to have been tampered with.
Keep people and pets away from leaking contents. If the container can be handled safely, place it in a secure area away from food and photograph the condition and codes. Contact Monster before discarding it unless keeping it would create a health or safety risk.
For a can damaged during delivery, also notify the retailer, delivery service or carrier. The seller may control the purchase refund, while Monster may investigate the product or packaging issue.
How to Read the Monster Production Code
Monster says its products do not use a conventional expiration code. The code on the can identifies a production, or “born on,” date and manufacturing information.
According to Monster’s current explanation:
- The first letter represents the month, with A through L corresponding to January through December.
- The first two numbers represent the year.
- The next two numbers represent the day.
- The following letter identifies the production facility.
- The final four numbers represent military time.
Provide the full code privately to Monster when reporting a problem. Do not rely on an unofficial online code decoder for a safety or quality decision.
Monster Energy Returns and Refunds
Monster does not publish one universal direct-return policy for beverages purchased from grocery stores, convenience stores, restaurants, vending operators or online retailers.
For an ordinary return or refund:
- Contact the seller that accepted payment.
- Keep the receipt and packaging.
- Review the retailer’s food-and-beverage return policy.
- Explain whether the request concerns preference, shipping damage, an incorrect order or a suspected defect.
- Contact Monster separately when there is a product-quality or safety concern.
A retailer may decide the purchase refund, while Monster may investigate the product itself. Neither contact guarantees reimbursement, replacement or compensation.
Monster Energy Caffeine Information
Caffeine content varies by Monster product, formula and container size. Do not assume every Monster drink contains the same amount.
A current 16-ounce can of Original Green Monster lists 160 mg of caffeine. Other Monster products may contain more or less, so read the Nutrition Facts and ingredient information on the exact container.
The U.S. Food and Drug Administration says that, for most adults, 400 mg of caffeine per day is an amount not generally associated with negative effects. This is not a recommended target or a guarantee that a particular amount is safe for every person. Sensitivity can vary based on body size, medications, health conditions, pregnancy and other sources of caffeine.
Consider caffeine from all sources, including coffee, tea, soda, chocolate, supplements, medications and other energy products.
Who Should Avoid Monster Energy?
Monster states that its energy drinks are not recommended for:
- Children
- People who are sensitive to caffeine
- Women who are pregnant
- Women who are nursing
People with health conditions, medication questions or concerns about caffeine should consult a qualified healthcare professional. Customer service cannot determine whether an energy drink is medically appropriate for a particular person.
Monster Ingredients, Dairy, Vegan and Gluten Questions
Ingredients vary among Monster Energy, Monster Ultra, Java Monster, Juice Monster, Rehab, Hydro and other product lines. Always read the current label for the exact flavor and package.
- Monster says its taurine is synthetic and is not derived from animals.
- Some Monster products contain dairy, particularly products in the Java Monster line.
- Monster products are not certified vegan.
- Monster states that its products do not use gluten-type ingredients, but people with allergies or medically required dietary restrictions should verify the exact product directly with the company.
Formulas and manufacturing arrangements can change. Do not rely on an old label, social-media post or information for a different flavor.
Illness, Allergic Reactions and Excessive Caffeine
Customer service is not an emergency or medical-advice service.
- Call 911 for trouble breathing, loss of consciousness, seizure, severe chest pain or another immediate emergency.
- Call Poison Control at 1-800-222-1222 for guidance about a possible poisoning or excessive exposure in the United States.
- Contact a healthcare professional about symptoms or medical concerns.
- Report the product issue directly to Monster with the product and purchase information.
- Consider reporting a food-related illness, injury, allergic reaction or safety defect to FDA.
Do not post medical records or personally identifying health information in the public review section.
How to Report a Food-Safety Concern to FDA
Consumers may report certain food-related illnesses, injuries, allergic reactions and product-safety defects to the U.S. Food and Drug Administration.
Have the product name, package size, production codes, purchase location, purchase date and description of the problem available. Reporting to FDA does not replace contacting Monster or obtaining medical care.
Monster Energy Recall Information
Recall status can change and may apply only to specific products, package sizes, dates or production codes. Do not assume that every Monster product is affected because one flavor, country or batch appears in a notice.
Search current federal recall information here:
FDA recalls, market withdrawals and safety alerts
Match the exact product, size and production code. Follow instructions in the official notice and contact Monster for product-specific guidance. Do not consume a product covered by a notice directing consumers to stop use.
Retailers, Delivery Services and Distributors
Monster Energy products are sold through independent grocery stores, convenience stores, warehouse clubs, restaurants, vending operators and online retailers.
The seller normally controls:
- The purchase receipt
- The retail price
- The store return policy
- A delivery refund
- A substituted or missing item
- A marketplace seller dispute
Monster generally handles product questions and quality complaints. A Coca-Cola bottler or other distributor may deliver products in a territory, but it should not automatically be treated as Monster Energy’s parent company or final decision-maker for a consumer claim.
Monster Promotions, Prizes and Sponsorships
Use the promotion category on Monster’s contact form for questions involving an official sweepstakes, code, prize or promotion.
Before contacting support, gather:
- The promotion name
- The official rules
- The entry date
- The code or confirmation involved
- Any winner or fulfillment communication
- The deadline shown in the rules
Each promotion has its own eligibility, deadlines, geographic limits and prize-fulfillment terms. Customer service cannot guarantee that an entry is valid or that a prize will be awarded.
Sponsorship and athlete-support requests should use the dedicated sponsorship category. Buying Monster products does not create a right to sponsorship, event support or free merchandise.
Monster Coupon and Impersonation Warning
Monster states that it has never produced printable online coupons and that purported printable Monster coupons are fraudulent.
- Do not pay for a printable Monster coupon.
- Do not provide account or payment information to claim a supposed coupon.
- Do not trust a social-media account solely because it uses Monster logos.
- Do not pay a prize, refund or shipping fee with gift cards or cryptocurrency.
- Use links and contact information obtained from Monster’s official website.
- Do not provide passwords or one-time security codes to an unexpected caller.
Report suspicious promotions or impersonation attempts through Monster’s official contact page and the platform where the message or advertisement appeared.
How to Escalate a Monster Energy Complaint
- Determine whether the issue is a product complaint, retailer refund, delivery problem, promotion question or medical concern.
- Call Monster Energy at 1-866-322-4466 or submit its official form.
- Provide the product and production information privately.
- Ask for a case or reference number.
- Save photographs, receipts and correspondence.
- Contact Monster Beverage Consumer Relations at 1-800-426-7367 when an appropriate corporate consumer-relations follow-up is needed.
- Contact the original retailer about the purchase refund.
- Report a possible food-safety problem to FDA when appropriate.
- Contact the payment provider about an unauthorized transaction.
Escalation does not guarantee a refund, replacement, reimbursement, coupon, medical payment, promotion prize or other requested outcome.
Monster Energy Headquarters, Ownership and Leadership
Monster Energy Company operates the Monster Energy brand and is part of Monster Beverage Corporation.
Monster Energy Company
1 Monster Way
Corona, CA 92879
Monster Beverage Corporation is a publicly traded holding company. It is not a subsidiary of The Coca-Cola Company. Coca-Cola has a strategic distribution and minority-investment relationship with Monster Beverage.
Hilton H. Schlosberg is CEO of Monster Beverage Corporation. Rodney C. Sacks is chairman.
The Corona address is a corporate office. It is not identified as a public refund counter, beverage-return location, medical office or guaranteed walk-in complaint center. Do not mail cans, liquids, payments, medical records or original documents there unless Monster provides specific authorization.
Monster Energy Reviews and Complaints
The CustomerServiceNumbers.com rating section currently displays 0 out of 5 based on 0 submitted reviews. The displayed 0/5 means that no ratings have been submitted; it is not a zero-star customer verdict.
There are no visible review dates and no supported positive or negative review themes. Future reviews should distinguish Monster Energy customer service from the retailer, restaurant, vending operator, delivery company, distributor or promotion administrator involved.
Monster Energy Customer Service FAQs
What is the Monster Energy customer-service number?
Call Monster Energy at 1-866-322-4466.
What are Monster Energy customer-service hours?
Monster currently lists telephone support Monday-Friday from 8 a.m.-5 p.m. Pacific Time. Its official page labels the time zone PST.
How do I report a bad-tasting Monster drink?
Stop drinking it, retain the can and remaining product when safe, photograph the printed codes, and contact Monster through its product-problem form or telephone number.
What should I do with a swollen Monster can?
Do not open or consume it. Keep it in a safe location away from food, people and pets, and contact Monster for instructions. Call emergency services if the situation creates an immediate hazard.
Does Monster print an expiration date?
Monster says its cans use a production, or “born on,” code rather than a conventional expiration code. Customer service can use the full code to identify production details.
How much caffeine is in Monster Energy?
The amount varies by product and size. A current 16-ounce can of Original Green Monster lists 160 mg. Read the exact container for the applicable amount.
Is Monster Energy recommended for children?
No. Monster states that its energy drinks are not recommended for children, caffeine-sensitive people, or women who are pregnant or nursing.
Does Monster Energy contain dairy?
Some products contain dairy, particularly products in the Java Monster line. Check the exact product label and contact Monster about allergy concerns.
Is Monster Energy vegan?
Monster says its taurine is synthetic, but its products are not certified vegan and some contain dairy. Review the exact product ingredients.
Can I return Monster directly to headquarters?
Do not mail or take beverages to Monster’s corporate office without authorization. Contact the original retailer about an ordinary refund and Monster about a product-quality complaint.
Who handles a Monster refund?
The retailer generally handles an ordinary purchase refund. Monster may investigate taste, carbonation, contamination, packaging or other product concerns. A refund is not guaranteed.
How do I report a Monster promotion problem?
Use the promotion category on Monster’s official contact form and provide the promotion name, entry details and relevant official rules.
Are printable Monster Energy coupons legitimate?
Monster states that it has never produced printable online coupons and considers purported printable Monster coupons fraudulent.
Is Monster Energy owned by Coca-Cola?
No. Monster Energy is part of publicly traded Monster Beverage Corporation. Coca-Cola has a strategic distribution and minority-investment relationship but is not Monster’s parent company.
Why Trust CustomerServiceNumbers.com?
CustomerServiceNumbers.com has helped consumers since 2004. It is an independent consumer resource and is not owned or operated by Monster Energy Company, Monster Beverage Corporation, The Coca-Cola Company, a Coca-Cola bottler, retailer, restaurant, vending operator, delivery platform, distributor, promotion administrator, healthcare provider, Poison Control or FDA.
CustomerServiceNumbers.com cannot inspect products, access Monster cases, approve refunds, issue replacements, diagnose symptoms, report an incident on a consumer’s behalf, award promotion prizes or resolve complaints directly.
Share Your Monster Energy Experience
Have you contacted Monster about unusual taste, lost carbonation, a damaged can, foreign material, an ingredient question, a promotion or another product concern? Share a first-hand review below and identify whether Monster, the retailer, delivery service, distributor or promotion administrator handled the matter.
Privacy and moderation warning: Do not post medical records, home addresses, telephone numbers, email addresses, payment information, claim numbers, complete can or production codes, unredacted receipts, private employee information, or photographs showing personal data. Product-safety and illness reports should also be submitted directly to Monster and the appropriate medical or regulatory authority. Reviews may be moderated for personal information, threats, profanity, spam, unsupported allegations, fraudulent coupon links and complaints involving unrelated sellers or service providers.
Page Update Note
This page was updated on July 28, 2026. The update verified Monster Energy’s customer-service number, weekday hours, official product-complaint form, Consumer Relations route, headquarters, legal company, ownership and leadership. It added guidance for damaged cans, product codes, retailer refunds, caffeine, ingredients, adverse reactions, FDA reports, recalls, promotions and coupon scams. Unsupported customer-review themes were removed.
Customer Service Information Disclaimer
CustomerServiceNumbers.com is not affiliated with Monster Energy Company, Monster Beverage Corporation, Coca-Cola, any retailer or any government agency. Contact details, hours, formulas, caffeine amounts, ingredients, promotion rules, retailer policies, recall status and complaint procedures can change. Verify product-specific information on the current label and through official Monster, retailer, healthcare or regulatory sources.