American Supplements Shipped Worldwide — Thorne, Life Extension, Now Foods, AG1

What are you optimizing for?

Pick a goal — we'll show you the stack.

⚡Energy

The stack

💊

B-ComplexMethylated B12 · B6 · Folate

Morning

🌿

Rhodiola RoseaAdaptogen · 300mg

Morning

🫀

CoQ10Ubiquinol · 100–200mg

With meal

🔴

Iron (if low ferritin)Bisglycinate form

Empty stomach

Note: Stimulant-free stack. If ferritin is above 40 ng/mL, skip iron. B-Complex should be methylated form — regular B12 (cyanocobalamin) works for most, but methyl B12 is better absorbed if you have MTHFR variants.

Monthly spend

$45–65US retail · roughly 3× local for international brands

Best US brands

Thorne Now Foods Life Extension Pure Encapsulations

Ship this Energy stack — get my US address →

The single ingredients doing the work

The eight most-shipped supplements to international customers.

Ranked by real order volume from our US shoppers over the last 90 days. What each does, what to look for, best US brands.

☀️

Vitamin D3 + K2 The one everyone should be taking

Bone density, mood, immune modulation. D3 alone doesn't do enough — K2 (MK-7) directs calcium into bones instead of arteries. Aim for 2000–5000 IU D3 + 90–180 mcg K2 daily.

Best US brands: Thorne · Sports Research · Now Foods

~$18/moUS retail

🧘

Magnesium Glycinate Sleep + stress + muscle

Most magnesium supplements are oxide (poorly absorbed). Glycinate is the gold standard — bioavailable, doesn't cause GI issues, gentle sedative effect at night. 300–400 mg before bed.

Best US brands: Doctor's Best · Thorne · Pure Encapsulations

~$16/moUS retail

🐟

Omega-3 (EPA/DHA) Heart, brain, inflammation

Fish oil quality varies wildly. Look for third-party tested (IFOS 5-star) and mercury-free. Aim for 1000–2000 mg combined EPA + DHA daily.

Best US brands: Nordic Naturals · Carlson · Sports Research

~$32/moUS retail

🌙

Melatonin Restricted in EU, UK, Australia, Japan

US OTC (3mg — often way too high). Prescription in UK, EU, Australia, Japan. If your country allows it, look for low-dose (0.3–1 mg) for sleep-cycle support.

Best US brands: Life Extension · Pure Encapsulations · Thorne

~$8/moUS retail

🌿

Ashwagandha (KSM-66) Stress · cortisol · sleep

Most brands use cheap root extract. KSM-66 is the clinically studied form — trials show cortisol reduction + subjective stress relief. 300–600 mg daily. Not with pregnancy.

Best US brands: Nootropics Depot · Physicians Choice · Nature Made

~$22/moUS retail

🌱

Probiotics (multi-strain) Gut · immunity · mood axis

Skip the yogurt-shelf stuff. Look for 30+ billion CFU multi-strain with delayed-release capsules to survive stomach acid. Refrigerated brands are usually better.

Best US brands: Seed · Garden of Life · Culturelle

~$50/moUS retail

💪

Creatine Monohydrate Muscle, brain, longevity

Cheapest, most studied supplement on earth. Skip micronized "special forms" — plain creatine monohydrate is the gold standard. 5g daily, no loading needed.

Best US brands: Bulk Supplements · Optimum Nutrition · Thorne

~$14/moUS retail

✨

Collagen Peptides Skin, joints, gut lining

Type I + III for skin, Type II for joints. Grass-fed bovine is standard; marine collagen is a good alternative if bovine is a concern. 10–20g daily, mixed in coffee.

Best US brands: Vital Proteins · Sports Research · Ancient Nutrition

~$40/moUS retail

The two brands we can't stop shipping.

Whole-stack simplification

AG1 by Athletic Greens

The most-forwarded single product in our supplement category. One scoop replaces roughly 8–12 individual bottles for the "general wellness" use case — multivitamin, probiotics, greens, adaptogens.

Why we ship so many: International customers save on shipping vs ordering 8 separate bottles. The pouch format is customs-friendly. Available direct from AG1's US site — we hold your subscription boxes and forward on your cadence.

Order AG1 to my address →

Clinical-grade single ingredients

The Thorne line

The "professional" brand you keep hearing about. NSF Certified for Sport. Practitioner-preferred. Best-in-class methylated B-complex, Basic Nutrients 2/Day multi, Magnesium Bisglycinate, and D3/K2.

Why we ship so many: Thorne's international shipping is limited and expensive. US customers get it 40% cheaper on Amazon US or thorne.com. We forward to 60+ countries at $14.99 per box.

Order Thorne to my address →

Two ways to keep them coming.

Automated forwarding for stacks that need monthly restock. Or a one-time trial kit.

↳ Monthly forwarding

The Monthly Stack

Subscribe to Thorne + AG1 + Seed directly. Everything auto-ships to your Selectido address. We consolidate and forward to you monthly. Free 30-day storage while we batch.

Subscription-friendlyBatched shipping

from $85 supplements + $14.99 forward

Set up monthly →

↳ One-time trial

The Starter Kit

Try the "essentials 5" — D3/K2, Magnesium Glycinate, Omega-3, Multivitamin, Probiotic. 30-day supply of each in original sealed bottles. Great first order to test the process.

No subscription30-day supply

$120 all-in + shipping

Ship a starter kit →

Country regulations at a glance.

Full check runs on every order

UK, EU, Australia, Japan: Melatonin is prescription. High-dose Vit D (5000+ IU) needs a doctor's letter in some EU countries.
UAE, Saudi Arabia: No alcohol-based tinctures. Standard capsules + powders ship fine.
India, Philippines: Most supplements arrive cleanly. Some ashwagandha shipments delayed at customs — we flag before ship.
Canada, Singapore: Health Canada + HSA follow similar rules to US OTC. Straightforward corridors.
Mexico, Brazil, Colombia: Personal-use quantities fine. ANVISA (Brazil) requires accurate labeling — we manifest correctly.
Any country not listed: Ask us before your first order. We check the destination's health regulator database and email you what's shippable.

Real questions.

Are US supplement brands actually better? +

For clinical-grade single-ingredient supplements (Thorne, Pure Encapsulations, Life Extension) — yes, usually. Third-party testing standards, NSF Sport certification, and the ability to source clinically-studied forms (KSM-66 ashwagandha, methylated B-complex, MK-7 K2) are more common in US brands than in most international markets.

How do you handle subscription orders? +

Set up your subscription (AG1, Thorne, Ritual, Seed) directly with the brand, shipping to your Selectido US address. We receive each auto-ship, hold up to 30 days for free while we consolidate, then forward on your cadence — monthly, bi-monthly, whatever you want.

What if a country classifies something as prescription? +

Every order gets a customs check against your destination country's health regulator database. If something in your order is Rx-only where you are, we flag it, refund that item, and ship the rest. You never receive an unexpected customs seizure notice.

Do you check expiration dates? +

Every bottle. We won't ship anything with less than 8 months to expiration on supplements (12 months on multivitamins). If your order arrives short-dated, we ping you before shipping so you can swap.

Can you get Amazon Subscribe & Save discounts? +

Yes — Subscribe & Save works with our US address. You get the 5–15% Amazon discount, we handle the international forwarding. Big win for high-volume supplement buyers.

What about protein powder + creatine — heavy stuff? +

We ship a lot of it. Standard 2 lb protein tubs and 500g creatine bags fit in a box comfortably. All-in international shipping usually runs $50–80 all-in for a full monthly stack.

Every American supplement, decoded and delivered.