Probiotic 40 Billion
40 billion CFU · 4 strains · 60 capsules · $39.00 alone
Four named strains, 40 billion strong.*
- Digestive health*
- Immune defenses*
- Regularity, from B. lactis*
Try

For the strength you can’t see
2 products · 30-day routine
Your gut is where immunity begins.*
Your gut lining is one of your immune system’s busiest places, home to about 80% of the body’s antibody-making cells. This protocol supports both: four studied probiotic strains with prebiotic fiber for your gut bacteria, and colostrum with 575 mg of IgG for the gut lining and immune health.*
Two ways to buy: $69.00 once for both, or subscribe to Probiotic and Colostrum separately for $66.30 a month. Subscriptions ship free; skip or cancel any time.

Your ritual
Three small steps for the work you can’t see.
The moment is when you take it. The evidence is below.
You know your days best. We bring the evidence.
Each product has its own time of day, so you always know what to take and when.
Day and evening
Probiotic 40 Billion
1 capsule by day, 1 in the evening.
Morning
Colostrum Powder
1 scoop in cold water or a smoothie.
Probiotics add beneficial bacteria; colostrum supplies immunoglobulins (IgG) and growth factors that support the gut lining they live on. Our probiotic names every strain (La-14, Bl-04, Lp-115, Lpc-37), so you can look each one up.*
40 billion CFU · 4 strains · 60 capsules · $39.00 alone
Four named strains, 40 billion strong.*
2,300 mg colostrum · 575 mg IgG per scoop · $39.00 alone
First nutrition for your gut and immune health.*
Each product has its own grade for how strong the human evidence is today, so you can see the weight behind every claim.
Supports digestive health
GrowingSupports gut and immune health
FrontierThese products are made for healthy adults. A few situations call for a word with your doctor first.
The supplement aisle runs on small print. Here is ours, in large print.
| What matters | Cellovi | Many supplement brands |
|---|---|---|
| Evidence | Cellovi: Every claim graded Established, Growing or Frontier | Many supplement brands: Claims are rarely graded for strength of evidence |
| Proof | Cellovi: Key studies on each product’s 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: Supplement Facts as text you can read | Many supplement brands: Some show them only as an image |
| Your day | Cellovi: 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: 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
Here is what you can check instead. Every claim on each product’s 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.
Use cold or room-temperature liquids; heat can damage the immunoglobulins.
Some people notice mild changes in the first week as the gut adjusts. Splitting the two capsules (day and evening) helps.
Every protocol is built the same way: dosed by the research, graded honestly, timed to your day.
For the first hour
Energy where it starts.*
NMN · CoQ10 · Resveratrol
For strong days, every decade
Strength, calm and bones for the decades ahead.*
Creatine · Magnesium Glycinate · Vitamin D3 + K2
For steady days, start to finish
Steady under pressure. Strong for the long run.*
Ashwagandha Plus · Creatine · Magnesium Glycinate
Feel like it.