All formulas
Shop all →-
NAD Plus Supplement 1400mg with Nicotinamide Riboside & Collagen
$29.97
$61.99$1.00 a day -
4Well Berberine HCL Supplement - Triple Strength GLP-1 Activator with Apple Cider Vinegar & Green Tea Extract
$25.58
$0.85 a day
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Improved Complex Saw Palmetto for Women 900 mg
$19.98
$0.67 a day
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Improved Complex Saw Palmetto for Men 900 mg
$19.98
$0.67 a day
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Dim Supplement Complex with Zinc, Niacinamide 370mg
$22.95
$29.97$0.77 a day -
Magnesium Advanced Complex 610Mg with Glycinate, Citrate, Vitamin B6 for 3X Absorption & 5-HTP
$24.97
$0.83 a day
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Cortisol Health for Women with KSM-66® Ashwagandha & L-Theanine
$29.99
$37.99$1.00 a day -
Women's Hormone Balance Bundle
$38.63
$42.93 -
Morning Calm, Evening Sleep Bundle
$49.46
$54.96
Questions people ask
All questions →How does the subscription work?
15% off every recurring order and free US shipping. Orders arrive every month; skip, pause or cancel from your account with one click. No minimum term.
What is the guarantee?
60 days from delivery on your first order of each formula, opened bottles included. If a formula is not right for you, email info@4well.com with your order number and we refund the purchase. You do not need to send the bottle back. The full terms are in our refund policy.
Can I take several formulas together?
Often, yes, but check the labels first. Some ingredients appear in more than one formula: ashwagandha is in Cortisol Health and in Saw Palmetto for Men, and magnesium is in Cortisol Health and in Magnesium Advanced. Add up the amounts and stay within what each label says. If you take medication, are pregnant or breastfeeding, ask your doctor before combining.
Where can I see the test results for my bottle?
On our lab testing page. If your batch is not listed there, email info@4well.com with the lot code printed on your bottle and we will send that batch’s certificate.
Latest guides
All guides →- GuideOn a GLP-1 Medication: The Nutrition Gaps Worth WatchingIn 461,382 adults starting a GLP-1, a nutritional deficiency was diagnosed in 22.4% within a year. Lean mass can be 40–60% of the weight...
- GuidePerimenopause Supplements: What Has Evidence, What Has Only a MechanismKSM-66 ashwagandha moved Menopause Rating Scale scores from 31.4 to 18.5 against a placebo arm that barely budged — in one trial of 60...
- GuideBest Magnesium for Sleep: What the Trials Actually ShowNo human trial has ever compared glycinate with citrate — for sleep, for anxiety, for anything. The one bisglycinate sleep RCT cut insomnia scores...
