Woman in her forties in soft evening light

In rhythm with your body.

Thoughtful supplements for the decades when your body changes the rules — sleep, gut, strength, focus and antioxidants for women 40 and beyond. Every dose on the label.

Manufactured in cGMP facilities in the USA — domestic and imported ingredients Every dose on the label 60-day first-order guarantee Free U.S. shipping over $45

The Essentials

Selenewell Magnesium Glycinate bottle with capsules on a pale grey surface

Magnesium Glycinate — Sleep & Calm

Magnesium Glycinate — Sleep & Calm
$28.90
Selenewell Resveratrol, 60 capsules with 300 mg trans-resveratrol each, in a cream and navy bottle

Resveratrol — Antioxidant Support

Resveratrol — Antioxidant Support
$26.90
Selenewell Lion's Mane Mushroom, 60 vegan capsules standardized to 40% polysaccharides, in a cream and navy bottle

Lion's Mane Mushroom

Lion's Mane Mushroom
$31.90
Selenewell Creatine Hydration Powder tub surrounded by a burst of powder
Sale

Creatine Hydration Powder — Her Strength

Creatine Hydration Powder — Her Strength
$34.99 $42.00
Selenewell Probiotic 40 Billion bottle with capsules on travertine stone

Probiotic 40 Billion with Prebiotics — Daily Balance

Probiotic 40 Billion with Prebiotics — Daily Balance
$30.90
Better together

The Rituals

Our essentials, paired the way they work best — and priced better than buying them one by one.

Our 60-day promise

Your first order is on us if it is not right.

Botanicals need four to eight weeks of consistent use before they tell you anything. So the window is sixty days — long enough to finish the bottle and still change your mind.

Keep the bottle. A supplement cannot be resold once it is opened, so we never ask you to ship an opened bottle back. Tell us within 60 days of delivery and we refund it — your entire first order, whether that is one product, several, or a bundle.
Back to your card, not to store credit. Approved refunds go to your original payment method within 10 business days. One email starts it — there is no form to fill in and no reason you have to justify.
Once per customer, and we say so up front. The guarantee covers the first order you place with us, in full. After that, unopened products are still refundable within 60 days, and anything damaged, wrong or missing is always replaced or refunded in full.

Read the full refund policy →

From the Journal

How to read a label, compare a form, and tell a real dose from a big number.

Read the Journal →

The Selenewell standard

Full-dose transparency.
Every active ingredient and its dose, printed on every label. Where a strain blend is the category norm, as in our probiotic, all four strains are named with their strain codes.
Made with standards.
Manufactured in the USA in FDA-registered, cGMP-compliant facilities.
Proof on request.
The manufacturer's certificate of analysis, one email away — for the products where the manufacturer provides one, and for a representative batch, not the batch in your bottle. Our quality page lists what we hold for each.
Read how our products are made and tested →
A person, not a ticket queue

Ask us anything before you buy

An ingredient, a dose, whether something suits you, where your order is — write to info@selenewell.com and you will hear back, usually within 1–2 business days. We answer every email.

Who is behind Selenewell  ·  Frequently asked questions  ·  Contact page

We cannot give medical advice. For questions about your health or medications, talk with your healthcare professional.