




OSN Kids Greens
Our signature All-in-1 Synbiotic (Probiotics, Prebiotics, Postbiotics, Digestive Enzymes) with a superior method of preparation. OSN Active Guard is uniquely fermented with 75 fruits and vegetables and 17 strains of cultured friendly bacteria for 3 years at Kibi-heights which is 300m above sea level, in Okayama, Japan. The ingredients are harvested during the best season at peak nutritional value. This extended fermentation, spanning all four seasons, enhances the viability of friendly bacteria, resulting in a fermented extract rich in minerals, vitamins, enzymes, and other pre-digested food ingredients, ensuring easy absorption by the body.
Pairs well with

OSN Activia

OSN Daily Greens

OSN Immune Boost
Key Benefits
- - Overall gastrointestinal health
- - Boosts immune levels
- - Improves nutrient absorption
- - Replenishes friendly bacteria
Each box contains
60 soft gels x 400mg
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Packaging
Width: 20" Height: 1 ½" Length: 21 ½"
Weight: 7 lb 8 oz
Package(s): 1

Traceable Ingredients
Every OSN formula is made traceable. Our visible supply chain tells you exactly what you're putting into your body, where it comes from, and why.

Grown 300m above sea level
Every ingredient is picked during its best season at peak nutritional value, then slow-fermented at Kibi-heights in Okayama, Japan. The result is a fermented extract rich in minerals, vitamins, and enzymes.
Four seasons of fermentation
Spanning all four seasons, our extended fermentation enhances the viability of friendly bacteria — pre-digesting nutrients so your body absorbs them with ease.
One synbiotic, four ways to feel better
Probiotics, prebiotics, postbiotics, and digestive enzymes work together to support your everyday wellness — from the inside out.
- Overall gastrointestinal health
- Boosts immune levels
- Improves nutrient absorption
- Replenishes friendly bacteria

Gut health
Supports daily digestion

Immunity
Strengthens your defenses

Energy
Natural everyday vitality

Absorption
Pre-digested for the body
Our Scientific Advisory Board
Dr. Aiko Tanaka
PhD, Microbiology
Chief Science Officer
Dr. Marcus Lim
MD, Gastroenterology
Clinical Advisor
Dr. Sofia Reyes
PhD, RD
Nutrition Lead
Prof. Daniel Osei
PhD
Fermentation Research
All Reviews (1)
Based on 1 review
My seven-year-old asks for it
"That sentence is the whole review. We had given up on anything green making it past inspection."