Frequently Asked Questions

Calendra is a premium daily eye supplement with a 15-in-1 formula. It combines Lutein, Zeaxanthin and Meso-Zeaxanthin with Astaxanthin, Bilberry Extract, Saffron and 9 additional nutrients to support your eye health every day.*

Calendra is made for adults who want to take care of their eyes, especially people over 40, anyone who spends long hours in front of screens, and those who want to support their vision as they age.* If you have an eye condition or take medication, please talk to your doctor before starting any supplement.

Calendra is designed to support:

• Macular health
• Eye comfort during screen use
• Visual clarity
• Vision in low light

Individual results may vary.*

Eye nutrients like Lutein and Zeaxanthin build up in the eye gradually, so consistency is key. Some people notice a difference in eye comfort within the first weeks, while the best results usually come with daily use over 3 months or more. Individual results may vary.*

Calendra is generally well tolerated when taken as directed. Some people may experience mild stomach discomfort, which is usually avoided by taking the capsule with a meal.

Please consult your doctor before use if you are pregnant or nursing, take prescription medication (especially blood thinners), have a medical condition or are scheduled for surgery.

No. Calendra is a dietary supplement, not a medicine, and it does not replace glasses, contact lenses or professional eye care. We recommend regular eye exams with your eye doctor.

Take 1 capsule a day with a glass of water, ideally with a meal. Nutrients like Lutein, Zeaxanthin and Astaxanthin are fat-soluble, so taking Calendra with food that contains some healthy fats helps your body absorb them.

Any time that fits your routine, as long as you take it with a meal. Many people take it with breakfast or lunch so they don't forget. Taking it at the same time every day makes the habit easier.

No problem. Just take your next capsule as usual the following day. Do not take two capsules to make up for the missed one.

Please do not exceed the recommended serving of 1 capsule per day unless your doctor advises otherwise.

Each bottle contains 30 veggie capsules, which is a 30-day supply when taken as directed.

Calendra can usually be taken with a multivitamin or other supplements. Because it already contains nutrients such as Zinc, Vitamin C, Vitamin E and Omega-3, check your other products to avoid doubling up, and ask your doctor or pharmacist if you are unsure.

Calendra contains 15 ingredients: Lutein, Zeaxanthin, Meso-Zeaxanthin, Astaxanthin, Bilberry Extract, Saffron, Zinc, Copper, Vitamin C, Vitamin E, Omega-3, Alpha-Lipoic Acid, Taurine, Ginkgo Biloba and Luteolin. Please check the Supplement Facts on the bottle or product page for exact amounts and allergen information.

These three carotenoids are naturally found in the macula, the part of the eye responsible for sharp, central vision. They are among the most studied nutrients for eye health and help support macular pigment and filter blue light.*

Calendra uses vegetarian capsules. Please check the full ingredient list on the label for details on each ingredient's source and any allergens.

Calendra is manufactured in a GMP-certified facility that follows strict quality and safety standards.

Every batch is produced following Good Manufacturing Practices (GMP), with no hidden ingredients or proprietary blends. What you see on the label is what is in the capsule.

Orders are processed within 1 to 2 business days. Free standard shipping in the US takes 5 to 7 business days. Expedited and overnight options are available at checkout. See our Shipping Policy for details.

Yes, we ship to selected countries. Delivery times and costs are shown at checkout. Import duties and taxes may apply and are paid by the customer. See our Shipping Policy for the full list of countries.

As soon as your order ships, you will receive an email with your tracking number and a link to follow your package.

Please contact us at support@trycalendra.com within 48 hours of delivery with your order number and photos, and we will make it right.

With a subscription, a new supply is sent to you automatically every 30 days at the subscriber price, so you never run out. Your payment method is charged automatically at each renewal until you cancel.

Subscribers save 32% on every order compared to the one-time purchase price, plus free shipping.

Yes. Log in to your account and go to Manage Subscription to skip a delivery, change your delivery date, pause or update your details at any time.

You can cancel anytime. Log in to your account, go to Manage Subscription and select Cancel. You can also email us at support@trycalendra.com and we will cancel it for you. Please cancel before your next billing date to avoid the next charge.

Yes. Calendra comes with a 90-day money-back guarantee. Please read our Refund Policy for the full conditions and how to request a refund.

Email us at support@trycalendra.com with your order number. Our team will reply with the next steps and the return address.

Email us at support@trycalendra.com. We are available Monday to Friday, 9:00 AM to 5:00 PM (ET), and reply within 48 hours on business days.