| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin C(as ascorbic acid) | 180 mg | 200% |
| Vitamin D3(as cholecalciferol) | 40 mcg | 200% |
| Vitamin E(as d-alpha tocopheryl acetate) | 15 mg | 100% |
| Vitamin B6(as pyridoxal 5′-phosphate) | 1.7 mg | 100% |
| Zinc(as zinc citrate) | 11 mg | 100% |
| Elderberry Extract(Sambucus nigra)(fruit) | 500 mg | ** |
| Echinacea purpurea Extract(whole plant) | 200 mg | ** |
| Citrus Bioflavonoid 50% | 100 mg | ** |
| L-Lysine | 100 mg | ** |
** Daily Value (DV) not established.
Other ingredients: Gelatin (capsule), Brown Rice Flour.
For the defenses you never think about
Immune Support Complex
Vitamin C · D3 · zinc · elderberry · 60 capsules
- Third-party lab tested
- GMP-certified facility
- Gluten-free
- Lactose-free
- Halal
+3 moreShow less
- Hormone-free
- Antibiotic-free
- Alcohol-free
Goal: Gut & immunity
Helps maintain a normal immune response.* Immune Support Complex brings the immune basics into one formula: vitamins C, D3, E and B6, zinc, elderberry and echinacea, with citrus bioflavonoids and L-lysine. Two capsules a day, for $0.97, help maintain a normal immune response and add antioxidant support.*
What it supports
- Immune response*
- Antioxidant support*
Your ritual
For the defenses you never think about
- Take two capsules with breakfast.
- Drink a full glass of water with them.
- Keep the bottle where you have breakfast.
Quiet work, every morning.
The moment is when you take it. The evidence is below.
You know your days best. We bring the evidence.
What is inside
- 180 mg vitamin C (200% DV)
- 40 mcg (1,600 IU) vitamin D3 (200% DV)
- 11 mg zinc (100% DV), 15 mg vitamin E and 1.7 mg vitamin B6 (as P-5-P)
- 500 mg elderberry extract (Sambucus nigra) and 200 mg Echinacea purpurea
- 100 mg citrus bioflavonoids and 100 mg L-lysine
- 60 capsules, a 30-day supply
- Made in the USA in an independently audited, GMP-certified facility, with globally sourced ingredients
- Third-party lab tested
- $0.97 a day
For your high standards
- Evidence graded Established, with the key studies on this page
- Quality we check before we sell: we review the quality documents for every product, and it is third-party lab tested
- 60-day first-order guarantee. How it works
- Real people: write to hello@cellovi.com and a person replies within 24 to 48 hours, Monday to Friday
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin C(as ascorbic acid) | 180 mg | 200% |
| Vitamin D3(as cholecalciferol) | 40 mcg | 200% |
| Vitamin E(as d-alpha tocopheryl acetate) | 15 mg | 100% |
| Vitamin B6(as pyridoxal 5′-phosphate) | 1.7 mg | 100% |
| Zinc(as zinc citrate) | 11 mg | 100% |
| Elderberry Extract(Sambucus nigra)(fruit) | 500 mg | ** |
| Echinacea purpurea Extract(whole plant) | 200 mg | ** |
| Citrus Bioflavonoid 50% | 100 mg | ** |
| L-Lysine | 100 mg | ** |
** Daily Value (DV) not established.
Other ingredients: Gelatin (capsule), Brown Rice Flour.
What the evidence says, plainly
Consistent results across many well-run human trials. As close to settled as nutrition gets.
Supports normal immune function
Established- Per serving
- Vitamin C
Graded on its vitamins C, D3 and B6 and zinc, each with an established role in normal immune function.*
Key studies
- NIH ODS, vitamin CGovernment fact sheet Fact sheet for health professionals. Vitamin C plays an important role in immune function and is an antioxidant that helps protect cells from oxidative stress.
- Carr and Maggini, 2017Review article Vitamin C plays a part in both the fast, first-line side of the immune system and the slower, targeted side.
- NIH ODS, zincGovernment fact sheet Fact sheet for health professionals. Zinc is needed for the work of hundreds of enzymes and plays a role in normal immune function.
- Chemek et al., 2023Review article The body has no specialized zinc store, so a steady daily intake matters.
- EU register of health claimsRegulatory register Reviewed by the European Food Safety Authority. Vitamins C, D and B6 and zinc each carry an authorized claim for the normal function of the immune system.
Every study behind this grade, explained · Reviewed October 2026 by the Cellovi team
Where it sits in your day
Morning
Immune Support Complex
2 capsules daily with 6 to 8 oz (177 to 237 mL) of water. Take them with a meal if zinc upsets your stomach.
What to expect, and when
- Every dayVitamins C and D3 and zinc help maintain a normal immune response through steady daily intake.*
- Over monthsThink of it as a daily foundation.
Timelines come from the human studies. What counts is consistency: in one study of 96 adults, a new daily habit took 66 days on average to feel automatic (Lally et al., 2010). Pair it with something you already do every day. Your first order comes with our 60-day first-order guarantee. How it works
Who it is for
Adults who want the immune basics covered every day: vitamin C, D3, zinc and elderberry in one daily serving, instead of four bottles.*
Before you start
Interactions and cautions
Ask your pharmacist or doctor first if you take:
- medicines that act on the immune system.
- tetracycline or quinolone antibiotics: take the antibiotic at least 2 hours before or 4 to 6 hours after zinc.
Check with your doctor first if you:
- already take other products with vitamin D or zinc: long-term zinc above the upper limit can lower copper levels
- have an autoimmune condition
- are pregnant, nursing or under 18
Do not take it if you:
- are allergic to plants in the daisy family, such as ragweed, chrysanthemums or marigolds
Not a complete list. Show your pharmacist everything you take, including other supplements. Sources: NCCIH, echinacea; NIH ODS, zinc.
Label warnings and storage
Contains 40 mcg (1,600 IU) of vitamin D3. If you also take Cellovi Vitamin D3 + K2, the Her Healthspan Protocol or any other vitamin D product, check your total with your doctor: the upper limit for adults is 4,000 IU a day.
Echinacea belongs to the daisy family, so avoid this product if you are allergic to ragweed, daisies, marigolds or chrysanthemums.
Consult your doctor before use if you take medication that affects the immune system, have an autoimmune condition, are pregnant, nursing, under 18, or have a medical condition.
Do not exceed the recommended dose. Keep out of reach of children. Store in a cool, dry place. Do not use if the safety seal is damaged or missing.
Report a reaction: safety@cellovi.com
- GMP-certified facilityAudited, third-party lab tested
- Made in the USA, with globally sourced ingredients
- Real doses, on the labelDosed by the research
- Free US shippingOn $50 or more
What you get, and what you don’t
The supplement aisle runs on small print. Here is ours, in large print.
| What matters | Cellovi Immune Support Complex | Many supplement brands |
|---|---|---|
| Evidence | Cellovi Immune Support Complex: Every claim graded Established, Growing or Frontier | Many supplement brands: Claims are rarely graded for strength of evidence |
| Proof | Cellovi Immune Support Complex: Key studies on the page: who took part, how much they took, what changed | Many supplement brands: Some pages link no studies or don’t state amounts |
| Label | Cellovi Immune Support Complex: Supplement Facts as text you can read | Many supplement brands: Some show them only as an image |
| Your day | Cellovi Immune Support Complex: When to take it, with a simple ritual to make it stick, and a full-day guide | Many supplement brands: Most give a dose, not a place in your day |
| First order | Cellovi Immune Support Complex: 60-day first-order guarantee | Many supplement brands: Many take back only unopened bottles, or charge a fee |
Based on our review of 12 supplement brands’ websites, October 2026. How our guarantee works
Reviews
New, so no reviews yet
Here is what you can check instead. Every claim on this page has an evidence grade and a link to the study behind it. We won’t fill this space with borrowed praise.
We started Cellovi because shopping for supplements meant wading through big promises, hidden doses and claims with no study in sight. So we built the brand we wanted to buy from.
Your reviews come next, and we’ll read every one.
Be among the first to review
We ask every buyer once, after delivery. Only verified buyers post, every rating shows from one star to five, our team and families never review, and nothing is offered in return.
Questions, answered
Check with your doctor first. Together they give 6,600 IU of vitamin D a day, above the 4,000 IU upper limit for adults, so a quick check of your total is the smart first step. The same goes for the Her Healthspan Protocol, which includes D3 + K2.
All year. Your immune system works every day of the year, so the formula is made for steady daily use, in every season.*
Both are botanicals with a long tradition of use, added to the vitamins and zinc that maintain a normal immune response.*
No. The capsules are made of gelatin.
Feel like it.