Stay Well

Extra Immune Support*

30-day supply | 3 capsules per day

Price: $45.00
Benefits
Supports cold response: Reduces Symptom Severity: Provides Multi-Pathway Immune Support: Clinically-Validated Botanical Power:

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Servings Per Container: 30Serving Size: 3 capsules per day
Amount Per Serving % Daily Value
Vitamin C (as Ascorbic Acid) 1,000 mg 1,111%
Vitamin D3 (as Cholecalciferol) 100 mcg (4,000 IU) 500%
Vitamin K2 (as Menatetrone-7) 100 mcg 83%
Zinc (as Zinc Bisglycinate) 15 mg 136%
Aged Garlic Extract (Bulb) 600 mg **
N-Acetyl-L-Cysteine (NAC) 600 mg **
Black Elderberry Extract (Fruit) 500 mg **
Quercetin (from Sophora japonica) 250 mg **

* Daily Value not established.

Percent daily values are based on a 2,000 calorie diet.

Start within 24 hours of symptom onset. Take 3 capsules every 8–12 hours with a snack or meal. Drink at least 250ml (8oz) of water with each dose; do not exceed 9 capsules (3 doses) per day. Do not use for more than 5 consecutive days.. For adults only

Consult a physician before use if you have a medical condition or take medications, especially anticoagulant, antiplatelet, or immune-modulating medications. Do not use if you have an autoimmune condition. Not recommended during pregnancy or nursing. KEEP OUT OF THE REACH OF CHILDREN. KEEP IN A COOL DRY PLACE.

That first tickle in your throat doesn't have to be a week-long sentence. Stay Well is a targeted, short-term immune support blend - not a daily multivitamin. It combines vitamin C and zinc to support normal immune function, with traditional botanicals like elderberry, andrographis, and stabilized garlic extract that help maintain upper-respiratory comfort and overall wellness. Use when you want extra support - then return to your routine.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

 

Deep dive into our formula

Why it works

Supports cold response

Feel ready to get back to your routine. High-potency Zinc has been studied in clinical trials for supporting healthy immune function during seasonal challenges. In a major review of 28 clinical trials, zinc shortened the duration of colds by nearly two days 1.

Reduces Symptom Severity

Feel better supported, even when you're under the weather. Andrographis has been studied for helping maintain upper-respiratory comfort, and a meta-analysis suggests elderberry can support subjective upper-respiratory symptom relief3.

Provides Multi-Pathway Immune Support

This isn't a single-ingredient solution. Elderberry helps support healthy mucosal defences 4, while Zinc supports normal immune cell function and Vitamin C supports antioxidant defences and overall immune health. .

Clinically-Validated Botanical Power

Deploy effective natural agents. In a double-blind, placebo-controlled trial, stabilized Allicin from garlic was shown to support key immune cells and to be linked with milder self-reported symptoms and fewer days of suboptimal functioning 5.

Formulated by a longevity physician

Every Mos formula is developed by Dr. Oliver Zolman, a physician specializing in longevity and preventive health.

Dr. Oliver Zolman

Dr. Oliver Zolman

The formulation

Every dose, form, and study

01 Your daily protocol
When to take What's in it Advice

with/after food

3 Capsule: 3 Capsules: Vitamin C (700 mg), Black elderberry extract (500 mg), Andrographis paniculata extract (200 mg), Zinc picolinate (150 mg, providing 30 mg elemental zinc), Allimax garlic (100mcg).

Start within 24 hours of symptom onset, then every 8-12 hours. Strictly adhere to the 5-day maximum course length. Drink at least 250ml (8oz) of water with each dose. Do not use for prevention. Take with a snack or meal to minimize potential stomach upset from the high dose of zinc and Vitamin C.

Total actives per serving ≈ 1.73 g. 3×/day max, ≤ 5 days.

02 Ingredient evidence

Every active, its dose, and the human trial behind it.

Vitamin C 700 mg

Fuels phagocytes; antioxidant buffer

Hemilä & Chalker 2023 meta-analysis, ≥1 g/d shortened cold duration −9 % overall (BMC Public Health) · De la Fuente et al. 2020 non-placebo RCT 500 mg/d better neutrophil & T-cell function in healthy older adults (Experimental Gerontology)

Black elderberry 750 mg

Blocks viral entry; symptom relief

Tiralongo et al. 2016 air-traveller RCT (312 pax): illness days halved using BerryPharma extract (Nutrients) · Hawkins et al. 2019 meta 4 RCTs reduction of symptom duration (Complementary Therapies in Medicine)

Andrographis 200 mg

Antiviral & anti-inflammatory

Saxena et al. 2010 KalmCold™ RCT (223 pts): total symptom score ↓ 52.7 % by day 5 (Phytomedicine) · Coon & Ernst 2021 systematic review, 7 double-blind RCTs, n = 896—superior to placebo for URTI relief (Planta Medica)

Pelargonium sidoides 20 mg

Not specified Not specified Strong RCT evidence + first hand success experience (Not specified)

Free delivery for every subscription

Free delivery for every subscription

Free shipping for all subscriptions and single time orders for over $100

100-day money-back guarantee

100-day money-back guarantee

Changed your mind? Contact us within 100 days for a full refund — no need to send anything back.

Science-based formulas only

Science-based formulas only

Every ingredient selected, dosed, and validated against peer-reviewed human clinical research.

Frequently Asked Questions

The supplement is designed to support three layers of immune defense: physical barriers, cellular immunity, and antibody production. It uses a blend of high-dose Zinc, Vitamin C, Elderberry, Andrographis, and stabilized Allicin from garlic to mount a rapid immune response during the first 72 hours of illness.

Start within 24 hours of symptom onset. Take 3 capsules every 8-12 hours with a snack or meal, and drink at least 250ml (8oz) of water with each dose. Do not exceed 9 capsules (3 doses) per day, and do not use for more than 5 consecutive days. Taking it with food helps minimize potential stomach upset from the high dose of Zinc and Vitamin C.

Yes. Do not use if you have an autoimmune condition (e.g., Rheumatoid Arthritis, Lupus, Multiple Sclerosis), as the immune-stimulating ingredients could exacerbate symptoms. Consult your physician if you are taking anticoagulant or antiplatelet medications, as high-dose Zinc and certain botanicals may interact. Andrographis and Elderberry stimulate immune activity, so individuals on immunosuppressant therapy should use caution.

Caution is advised. Stay Well contains high-dose Zinc (30mg per serving) and 1g Vitamin C. If you are already taking a daily multivitamin with these nutrients, be mindful of total daily intake — particularly Zinc, where the tolerable upper limit is 40mg/day for adults.

Elderberry extract, if not processed with sufficient heat, can cause gastric complaints like nausea or vomiting due to cyanogenic glycosides. However, professional extracts are standardized to eliminate this risk. Some users may also experience mild gastrointestinal upset from high-dose Zinc or Garlic.

The documentation does not explicitly recommend it for these populations and often suggests consulting a healthcare professional due to the high potency of certain botanical extracts and high-dose vitamins.

Stay Well targets immune defense through multiple complementary mechanisms: Elderberry supports mucosal barriers, Zinc supports immune cell function, Vitamin C supports white blood cell activity, Andrographis has been studied for upper-respiratory comfort, and stabilized Allicin from garlic supports key immune cells.