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Ashwagandha Supplement 300 mg

Ashwagandha Supplement supports a healthy response to stress, the immune system, restful sleep, and perimenopause discomfort.

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*Daily value not established.

Supplement Facts

Serving Size: 1 capsule
Servings Per Container: 60
Ingredient Amount Per Serving
% Daily
Ashwagandha root (Withania somnifera) 300 mg *
*Daily Value not established.

Other Ingredients: Capsule shell (gelatin and water), microcrystalline cellulose, and magnesium stearate (vegetable source).

Cooper Complete Gluten Free iconCooper Complete Non GMO Icon

This dietary supplement is gluten-free and Non-GMO.

While we strive to ensure the label information on this site represents the label on the product available for purchase, products are updated from time to time. Please consult the label on the product you purchase for the most accurate ingredient and allergen information.

Item Number: 311
SKU: 816899005084
Formula#: CNN-8050 V0823

What It Is

Ashwagandha is an evergreen shrub that contains bioactive compounds, including a group of substances known as withanolides, which are associated with anti-inflammatory and antioxidant effects. Ashwagandha is also referred to as “Indian Ginseng” or “Indian Winter Cherry” and has been used for centuries in Ayurveda medicine. 

How to Use:

As a dietary supplement, take one (1) capsule daily or as directed by your health care professional. Each bottle contains 60 servings.

How It Helps

Cooper Complete Ashwagandha Supplement contains 300 mg ashwagandha to help moderate occasional stress and support memory function.†

Stress and Anxiety Support

Ashwagandha reduces stress and occasional anxiousness† and is known as an “adaptogen” for its ability to help the body adapt to stress. A review of 12 randomized controlled trials with over 1,000 study participants found that supplementation of 300-600 mg daily was associated with significant reductions in stress and anxiety compared to the placebo. A smaller, randomized, double-blind study of 75 middle-aged adults suffering from moderate to severe anxiety found anxiety dramatically reduced. At the same time, fatigue, motivation, and concentration improved while taking 300 mg of ashwagandha twice daily plus a multivitamin for 12 weeks.

Sleep Support

Ashwagandha supports restful sleep while helping to maintain daytime energy.† A systematic review and meta-analysis of five randomized controlled trials containing 400 participants were analyzed, and researchers saw a small but significant effect on overall sleep. The group with the best improvements in sleep were adults who had been diagnosed with insomnia and were taking 600 mg or more of ashwagandha for eight or more weeks.

Hot Flashes and Perimenopausal Symptoms

A randomized, double-blind, placebo-controlled study of 91 perimenopausal women in India found that 300 mg twice daily slightly reduced total symptom severity scores based on symptoms such as vaginal dryness, urinary frequency, sweating, mood, and heart palpitations. The women also had, on average, one fewer hot flashes per day than those who took a placebo. While there was no significant change in testosterone blood levels, estradiol levels increased, and levels of follicular stimulating hormone (FSH) levels decreased in the women taking ashwagandha rather than the placebo.

Athletic Performance

Research indicates ashwagandha supplements have a small positive impact on athletic performance. A  small study found ashwagandha supplements taken over 12 weeks improved upper and lower-body strength in already active adults. Another study of 50 healthy, athletic men and women found those who took 300 mg of ashwagandha twice daily over two months modestly improved cardiorespiratory endurance (as measured by VO2 max) during a 12-minute run test compared to placebo. The participants taking ashwagandha supplements reported modest improvements in exercise recovery (perceived exertion and fatigue) and reduced general stress.

Support Healthy Testosterone

A 16-week, randomized, double-blind, placebo-controlled crossover study examined ashwagandha’s hormonal and vitality effects in aging overweight males. Fifty-seven overweight, tired men aged 40-70 years were given a placebo or an ashwagandha supplement. In addition, the men completed self-reported questionnaires (Aging Males’ Symptoms (AMS) self-report measure) that measured psychological, somatic, and sexual symptoms on a 5-point scale as well as a 35-item Profile of Mood States, Short-Form (POMS-SF) covering anger-hostility, confusion-bewilderment, depression-dejection, fatigue-inertia, tension-anxiety, vigor-activity, and friendliness. In addition, saliva samples were collected at baseline, weeks 8 and 16 to evaluate salivary testosterone, cortisol, DHEA-S and estradiol. The researchers saw an 18 percent increase in DHEA-S and almost a 15 percent increase in testosterone compared to placebo. (There were no changes in cortisol and estrogen, or significant differences found in self-reported fatigue, vigor, or sexual well-being.)

Cognitive Function

A prospective, randomized, double-blind, placebo-controlled study of 50 adults with mild cognitive impairment over eight weeks had the treatment group take 300 mg ashwagandha-root extract twice daily. After eight weeks, the ashwagandha treatment group showed significant improvements compared to the placebo control group in immediate and general memory. The treatment group also showed improvement in executive function, sustained attention, and information-processing speeds.

Joint Function

In a small but well-controlled study in India, adults with joint pain and discomfort from knee osteoarthritis took either 150 mg or 250 mg of ashwagandha or a placebo twice a day for 12 weeks. At four weeks, significant reductions in measures of pain, stiffness, and disability were observed, with better improvements in the group taking 250 mg twice daily. The study authors concluded the therapeutic response appears to be dose-dependent.

As a dietary supplement, adults take one (1) capsule daily or as directed by your health care professional.

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Customer Q&As

If you have questions, we have answers. See what real people are asking about Cooper Complete products.

11 Questions
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What should you not take with ashwagandha supplements?


Ashwagandha might interact moderately with antidiabetes and antihypertensive drugs, as well as benzodiazepines, CNS depressants, immunosuppressants, and thyroid hormone. Because of ashwagandha’s calming effect, it may interact with other supplements and herbs that have sedative properties as well as those that lower blood pressure.  Speak with your physician before taking ashwagandha if you are taking these, or any prescription medications.


Does ashwagandha have any side effects?


The side effects of Ashwagandha are minimal, it can cause drowsiness, upset stomach, nausea, and loose stool.  You should not take Ashwagandha if you are nursing or pregnant, it may cause complications.  Please speak to your doctor before starting an Ashwagandha regimen.


Is it okay to take Ashwagandha every day?


Ashwagandha works best when you take 250-500mg daily for at least 1 month, and appears to be well tolerated if taken consistently at the same time daily.


Is it safe for someone with prostate cancer to take ashwagandha supplements?


It’s important to talk with your oncologist about all the vitamins and dietary supplements you take. Men with hormone-sensitive prostate cancer should avoid ashwagandha supplements as they may increase testosterone levels.


What country does the ashwagandha come from?


Cooper Complete Ashwagandha comes from withania somnifera root that is grown and sourced from India.


When’s the best time to take ashwagandha?


While Ashwagandha Supplements can be taken at the time most convenient for you, if you have difficulty sleeping, we suggest taking Ashwagandha Supplements about an hour before bedtime.†  If you are taking Ashwagandha Supplements for stress and anxiety support, you may want to take it in the morning as part of your daily routine.†


Is it true that ashwagandha is in the nightshade family of plants?


Eggplant, tomatoes, pepper, and white potatoes are known as nightshade vegetables, and ashwagandha is derived from the same plant family these vegetables come from. If you have been allergy tested and are allergic to tomatoes, eggplant, peppers, or potatoes, you should avoid ashwagandha supplements.


Is it safe to take Ashwagandha Supplements while taking a blood-thinner?


It’s important to talk with your physician or health care provider before taking any supplements if you are on a prescription blood thinning medication. This includes daily aspirin therapy, as some preliminary research suggests ashwagandha supplements may have blood-thinning effects.


Does ashwagandha cause drowsiness?


Ashwagandha supplements may cause drowsiness. We recommend taking the supplement in the evening before bed to see how it affects you. If you want to take the supplement during the day, try taking the supplement in the morning (when you’re not operating machinery or driving) and see how it affects you.


Can pregnant or lactating women take ashwagandha supplements?


Pregnant or lactating women should not take ashwagandha supplements. If you have any health condition or are taking any medication, consult your physician or health care provider before taking this or any other vitamin or supplement.


Is it true that ashwagandha supplements can affect thyroid medications?


A study in India found ashwagandha improved thyroid function in adults with subclinical hypothyroidism. There’s also evidence that ashwagandha may increase the effects of thyroid medications. Be sure to talk with your physician before starting this or any other supplement.

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