00Field notes · Core Complex
We are live.
Literally. At the heart of Core Complex is a living bacterium, Lactobacillus paracasei, kept dry and sealed until the moment you activate it.
01Specimen
Meet Lactobacillus paracasei.
What it does
It turns sugars into lactic acid for a living, the same acid your skin keeps in its own natural moisturizing factor. Healthy skin runs slightly acidic, and Core Complex is set at pH 5.0–5.5 to match, helping skin stay hydrated and its moisture barrier look and feel its best.
02Classification
The official paperwork.
Taxonomy
- DomainBacteria
- PhylumBacillota
- ClassBacilli
- OrderLactobacillales
- FamilyLactobacillaceae
- GenusLacticaseibacillus
- SpeciesL. paracasei
Field ID
- Shape
- Rod (bacillus)
- Gram stain
- Positive
- Motility
- Non-motile
- Spores
- Non-spore-forming
- Metabolism
- Lactic-acid producing
Formerly Lactobacillus paracasei (renamed in 2020).
03Specificity
Species. Strain. Formula.
The family
Lactobacillus paracasei is a big family of related bacteria, found in fermented foods and the human gut.
04Activation protocol
Separated until you say so.
PROSYM833
ProSym833 brings together our selected, genome-sequenced Lactobacillus paracasei and a multi-molecular-weight hyaluronic acid base. Together they form the formulation environment at the heart of Core Complex. The two stay separate until you activate the cap.
The combination of Lactobacillus paracasei and hyaluronic acid as a topical serum is patented in Canada. The cap uses our separately patented delivery technology.
A · In the cap
Live, genome-sequenced Lactobacillus paracasei
Dry powder
B · In the bottle
Multi-molecular-weight hyaluronic acid
Serum base
A + B = Core Complex with ProSym833 · combined at first use

Step 1 · Separated
The powder containing live Lactobacillus paracasei is held in the cap, separate from the serum base.
05Spec sheet
The bottle, by the numbers.
Core ComplexProbiotic facial serum
- Organism
- Lactobacillus paracasei, one genome-sequenced strain
- Live count
- NLT 8 billion CFU*
- Format
- Live, activated at first use
- Delivery
- Patented delivery technology: bacteria sealed in the cap
- Serum base
- Sodium hyaluronate + hydrolyzed hyaluronic acid
- Formulation
- ProSym833: L. paracasei + hyaluronic acid serum base
- pH
- 5.0–5.5
- Volume
- 15 ml
- Free from
- Fragrance, colorants
- Protocol
- Evening, last step of your routine
*At time of activation. NLT: not less than. CFU: colony-forming units.

07Conclusion
Meet the serum built around it.
Core Complex — a 15 ml probiotic facial serum with ProSym833™, activated at first use. Barrier first, always. Available as the Core Complex Duo.
Explore Core Complex