Free Shipping on Orders $40+

Douglas Laboratories C-Max Tablets - Final Sale

$3540

Pickup currently unavailable at Fitchburg

Approaching Best By Date — Grab the Savings! FINAL SALE ITEM

90 tablets

Feel your best all day long with Douglas Laboratories C-Max, an extended-release vitamin C supplement that helps maintain immune function around the clock.*

  • 1500mg slow-release vitamin C per tablet
  • Bioflavonoid complex provides antioxidant support for immune function.*
  • Bioflavonoids enhance the benefits of vitamin C by working synergistically
  • Rose hips provide additional herbal vitamin C and antioxidant support.*
  • Easy, convenient tablets make daily immune support feel simple.*

Douglas Laboratories C-Max


Look no further for an excellent vitamin C source! C-Max has everything you need in a vitamin C supplement. While other supplements provide a high dose of vitamin C, it is quickly processed by the body. C-Max’s extended-release formula provides your body with a steady level of vitamin C throughout the day. Your body can make the most of that extra time for immune support.*



  • Extended-release tablets provide 1500mg vitamin C as the day goes on for longer-lasting immune support.*

  • Bioflavonoid complex complements vitamin C and gives your body a healthy dose of antioxidants.

  • Antioxidants help your immune system handle harmful free radicals in your body and support the body’s natural defenses.*

  • Holistic formula includes herbal support for immune function* from rose hips, which have been studied for their plentiful vitamin C and antioxidant content.


C-Max also includes a hefty dose of bioflavonoids! Bioflavonoids are a useful complement to vitamin C. These helpful antioxidants work together with vitamin C to enhance its benefits! They help your body deal with harmful free radicals while promoting vitamin C’s role.*


C-Max is a holistic formula designed to work with your body’s natural processes. These convenient tables include herbal support for immune function* from rose hips. Rose hips have long been used for their abundance of vitamin C and antioxidants. They are one of nature’s best sources of nutrients that support immune function*!


If you need help picking the best vitamin C supplement for you, talk to our certified Wellness Consultants via our contact us page for personalized suggestions and answers to your health questions.



Reviewed for accuracy by our licensed clinical team — doctors, nurse practitioners, and functional medicine specialists at The Healthy Place Clinic in Madison, WI.


Suggested Use: As a dietary supplement, adults take 1 tablet daily or as directed by your healthcare professional.

Cautions: Keep out of the reach of children. Consult a physician before taking this product if you are pregnant, nursing, taking any medications, or have a medical condition.

Questions? We’ve got answers! Reach out to our support team for help.
Serving Size: 1 Tablet

Servings Per Container: 90

Ingredients: Vitamin C (Ascorbic Acid) Bioflavonoid Complex, Rose Hips

Other Ingredients: Cellulose, ethylcellulose, magnesium stearate, stearic acid, silica and vegetable coating (purified water, hypromellose, glycerin)

FAQs About Douglas Laboratories C-Max Tablets - Final Sale

Q: Does this vitamin C stay in your system longer than a regular tablet? A: Yes. It’s a 1500 mg extended-release tablet, so it releases more gradually instead of hitting all at once.

Q: How should I take Douglas C-Max? A: One tablet a day. I’d take it with food and water, especially if vitamin C tends to bother your stomach.

Q: Why does this one have bioflavonoids and rose hips in it? A: They’re in there alongside the vitamin C. The bioflavonoids add some extra antioxidant support, and rose hips have traditionally been paired with vitamin C.

Q: I've heard high-dose vitamin C can upset your stomach. Is that a concern with this one? A: Yes, for some people. A 1500 mg tablet can be a lot if you’re sensitive, so taking it with food usually helps.

Q: My doctor said to be careful with supplements if I'm on medication. Does this one have any interactions? A: Maybe. Vitamin C is usually pretty straightforward, but if you take medication or have a medical condition, I’d check with your doctor or pharmacist before starting it.

Q: Should I take this if I'm pregnant or nursing? A: I’d check first. Talk to your OB or midwife before starting this one.

Q: Is this a chewable or an easy-to-swallow tablet? A: It’s a tablet, not a chewable. Most people do fine with it, but if you don’t like bigger tablets, that’s worth knowing since it’s an extended-release formula.

At The Healthy Place, we strive for accuracy in our product images and information. However, manufacturers may make changes to product packaging or ingredients that are not yet reflected on our site. We recommend that you read the labels, warnings, and directions on purchased products before use and not rely solely on the information provided by The Healthy Place.