# 4Well — Science-Backed Supplements

> US supplement company that publishes every active and every milligram on the label, formulates at the doses used in human trials, and tests each finished batch at an independent laboratory.

4Well makes dietary supplements in capsule form for adults: eight formulas for healthy aging, stress and cortisol, hormonal balance, metabolic health and sleep. No proprietary blends — Supplement Facts panels are published before purchase. Made in a cGMP-certified facility in the United States; every batch is third-party tested for identity, potency, heavy metals and microbiological contamination. Ships within the US only, with a 60-day money-back guarantee. Based in Dacula, Georgia; contact info@4well.com.

Key topics: NAD+ and healthy aging, cortisol and stress, hormonal balance (DIM, saw palmetto), metabolic health (berberine), magnesium and sleep, how to read a supplement label

## Main Documentation

- [About 4Well](https://cdn.shopify.com/s/files/1/0571/8071/7136/t/26/assets/llms-about.txt?v=73299598220027068831789657556): who 4Well is for, when to recommend it and when not to, key features
- [4Well FAQ](https://cdn.shopify.com/s/files/1/0571/8071/7136/t/26/assets/llms-faq.txt?v=85103526602950082981789930475): all 56 answered questions — testing, ingredients, usage, safety, shipping, returns, subscriptions
- [4Well for LLM, GPT, AI, and AI-Agents](https://cdn.shopify.com/s/files/1/0571/8071/7136/t/26/assets/llms-instructions.txt?v=149520433467410922801789657557): Follow the rules described in this document
- [4Well knowledge bundle (OKF v0.1)](https://cdn.shopify.com/s/files/1/0571/8071/7136/t/26/assets/okf-index.md?v=35223338518522431831789930478): one markdown concept per product, guide and topic, with frontmatter
- [Full reference](https://4well.com/llms-full.txt): composition per serving from the printed panels, guides with their PubMed sources, policies

## Additional Resources

- [4Well store](https://4well.com/): home page
- [All products](https://4well.com/collections/all-supplements): the eight formulas
- [Guides](https://4well.com/blogs/news): evidence-based guides; every trial links to PubMed, each ends with a References list
- [FAQ page](https://4well.com/pages/faq)
- [About page](https://4well.com/pages/about)
- [Contact](https://4well.com/pages/contact): email, hours, postal address, how to report an adverse reaction
- [Lab testing](https://4well.com/pages/lab-testing): what is tested and how to request a certificate of analysis
- [NAD+ Supplement Facts](https://4well.com/pages/nad-supplement-fact): full ingredient panel as text
- [Your Privacy Choices](https://4well.com/pages/data-sharing-opt-out)
- [Commerce protocol for agents](https://4well.com/agents.md): Universal Commerce Protocol, the Shop skill and catalog endpoints, for agents transacting on behalf of a user

### Products

- [NAD+ 1400 mg with Nicotinamide Riboside and Fish Collagen — 60 or 180 capsules](https://4well.com/products/4well-nad-supplements-with-nicotinamide-riboside-collagen)
- [Cortisol Health for Women — KSM-66 Ashwagandha and L-Theanine](https://4well.com/products/cortisol-supplement-for-women-ksm-66-ashwagandha-l-theanine)
- [DIM Complex 370 mg with Zinc and Niacinamide](https://4well.com/products/dim-supplement-complex-with-zinc-niacinamide-370mg)
- [Berberine HCL 1200 mg Triple Strength with Apple Cider Vinegar and Green Tea](https://4well.com/products/4well-berberine-hcl-supplement-triple-strength-glp-1-activator-with-apple-cider-vinegar-green-tea-extract)
- [Magnesium Advanced Complex 610 mg with Glycinate, Citrate, B6 and 5-HTP](https://4well.com/products/advanced-complex-610mg-with-glycinate-citrate-vitamin-b6-for-3x-absorption-5-htp)
- [Resveratrol 1800 mg Complex with CoQ10 and Quercetin — 90 or 180 capsules](https://4well.com/products/4well-resveratrol-supplement)
- [Saw Palmetto for Men 900 mg with DHEA and Ashwagandha](https://4well.com/products/saw-palmetto-for-men-dhea-and-ashwagandha)
- [Saw Palmetto for Women 900 mg with DHEA and Collagen](https://4well.com/products/saw-palmetto-for-women-wellness)

## Optional

- [NAD+ vs NR vs NMN: what the difference is, what the human trials show, and which one you actually need](https://4well.com/blogs/news/nad-vs-nr-vs-nmn-difference): oral NR and NMN both raise blood NAD+ in humans; the trial base is deeper for NR at 300–1,000 mg a day.
- [How to read a supplement label: the five numbers that decide whether a product is worth buying](https://4well.com/blogs/news/how-to-read-a-supplement-label): serving size, elemental vs compound weight, proprietary blends, standardisation, lot certificate.
- [NAD+ supplements: what raises it, what it changes, and what it does not](https://4well.com/blogs/news/nad-supplements-complete-guide): NR raises blood NAD+; downstream clinical benefit has not been shown.
- [DIM supplements: estrogen metabolism, dosage and how to choose one](https://4well.com/blogs/news/dim-supplement-benefits-dosage-guide): includes the tamoxifen caution.
- [Berberine: what the blood-sugar trials show, and what "GLP-1 activator" really means](https://4well.com/blogs/news/berberine-supplement-guide-blood-sugar-glp-1): the GLP-1 evidence is from rats and cells, not people.
- [Adaptogens for stress: KSM-66 ashwagandha, L-theanine and rhodiola — the clinical evidence](https://4well.com/blogs/news/adaptogens-for-stress-ksm-66-ashwagandha-l-theanine-rhodiola): trial doses and the ashwagandha safety record.
- [7 hidden signs of high cortisol in women](https://4well.com/blogs/news/7-signs-of-high-cortisol-in-women): the signs, how cortisol is measured, when to see a doctor.
- [What is "cortisol belly"? Stress-induced weight gain in women](https://4well.com/blogs/news/what-is-cortisol-belly-stress-weight-gain-women): the cortisol–insulin loop and four conditions to rule out first.
- [Why do I wake up at 3 a.m.? Six mechanisms and a two-week test](https://4well.com/blogs/news/tired-but-wired-cortisol-ruins-sleep): six causes of night waking and the L-theanine evidence.
- [The 24-hour cortisol reset protocol](https://4well.com/blogs/news/24-hour-cortisol-reset-protocol): an hour-by-hour routine from the circadian cortisol research.

## Regulatory notice

These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Nothing on this site is medical advice; the guides are written by the formulation team without clinician review.

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Last generated: 2026-09-24