La-5® and BB-12® strains in a premium probiotic for people who feel bloated, sluggish or off after antibiotics.

This is a clinically documented probiotic capsule contianing 4 billion live lactic acid bacteria from two well-studied strains:

• Lactobacillus acidophilus La-5 and
• Bifidobacterium lactis BB-12 (both Chr. Hansen branded strains).

The capsules use a patented gel matrix to protect the bacteria from stomach acid, releasing them viable in the small intestine.

The 60-capsule pack is a two-month supply at one capsule a day and is Pharma Nord's flagship probiotic. So its the Flagship of a flagshop brand. 

Why La-5 & BB-12 Were Chosen

Not all probiotics are equal. The two strains in BioActive Culture, Lactobacillus acidophilus La-5 and Bifidobacterium lactis BB-12, are among the most studied probiotic strains in the world.

Both are produced by Chr. Hansen, the Danish biotech company behind many clinical-trial probiotic formulations. It products only high quality probiotics. 

Together they have been investigated in dozens of trials for digestive comfort, stool regularity, immune function and antibiotic recovery. The combination of the two strains is the formulation Pharma Nord has supplied to Irish pharmacies for over 20 years.

The Gel Matrix Protection Technology

Most probiotic bacteria do not survive stomach acid. The gel matrix in BioActive Culture surrounds the freeze-dried bacteria and resists gastric conditions, dissolving only in the higher-pH environment of the small intestine where the bacteria can take hold.

This is important: a probiotic count on the label means nothing if the bacteria do not arrive alive at the gut.

Pharma Nord's enteric protection is one of the reasons this product has held a strong position in Irish pharmacies.

How Lactobacillus acidophilus La-5® Works

La-5® is a lactic acid bacteria strain that helps populate the gut and create a more favourable gut environment. It survives stomach acid and bile, reaches the intestine, and can attach to the gut lining. There it produces lactic acid, which lowers gut pH and makes the environment less favourable for unwanted microbes. It also competes for space and nutrients on the gut wall.

Pathway and chemicals:

La-5® survives stomach acid and bile, then reaches the intestine where it can attach to the gut lining, also called epithelial cells. Once there, it ferments sugars and produces lactic acid. Lactic acid lowers the gut pH, making the environment more acidic and less comfortable for unwanted microbes. It has the added benefit of competing with other microbes (the bad guys) for space and nutrients, so it helps crowd the gut with useful bacteria.

It can also “talk” to the gut immune system. The gut lining contains immune cells such as dendritic cells and macrophages, which monitor what is happening in the intestine. Macrophages are “big eater” cells. They swallow bacteria, debris and damaged material. Dendritic cells are “messenger” immune cells. They sample what is in the gut and show pieces of it to other immune cells, especially T-cells.

La-5® may influence cytokines, which are immune messenger chemicals. The key ones are IL-10, which is more calming, and TNF-alpha, which is linked with inflammatory signalling.

Simple Mechanism of action

So the simple pathway is: La-5® reaches the gut, attaches to epithelial cells, produces lactic acid, lowers pH, competes with unwanted microbes and interacts with immune-signalling chemicals.

How Bifidobacterium lactis BB-12® Works

BB-12® is one of the best-studied probiotic strains and is linked with gut barrier function, bowel regularity and gut immune activity. Reviews describe BB-12® mechanisms including pathogen inhibition, gut barrier effects and immune interactions.

Pathway and chemicals:

The main pathway is fermentation and gut-barrier signalling. BB-12® breaks down certain carbohydrates into short-chain fatty acids such as acetate, propionate and butyrate. These acids help lower gut pH, feed colon cells, and influence tight junction proteins such as occludin and claudins, which help keep the gut lining tight.

BB-12® can also interact with immune cells in the gut, including dendritic cells and macrophages, and may influence cytokines such as IL-10, IL-12, TNF-alpha and IFN-gamma.

It also helps crowd the gut with useful bacteria and so competes with "bad bacteria" for resources and space.

Simple Mechanism of action

BB-12® survives digestion, attaches to the intestinal lining, competes with unwanted microbes, and helps maintain the gut barrier. It can also ferment carbohydrates in the colon, producing short-chain fatty acids.

BioActive Culture for Digestive & Immunity

This product has four main uses.

• First, digestive health and stool regularity, where probiotics have the best evidence.
• Second, recovery of gut bacteria after a course of antibiotics, which is a common reason customers reach for a probiotic.
• Third, winter immune function, where probiotics have modest but consistent evidence.
• Fourth, for travellers wanting a reliable daily probiotic during trips.

It is not a replacement for prescribed treatment of digestive conditions.

Benefits of Pharmanord BioActive Culture 

• 4 billion CFU of clinically studied La-5 and BB-12 strains
• Patented gel matrix protection for stomach acid survival
• Chr. Hansen Danish strains with decades of clinical research (only the best)
• Shelf-stable at room temperature; no refrigeration required
• 60-capsule pack for two months at one daily
• Pharma Nord pharmaceutical-grade quality control

FAQs: Pharmanord BioActive Culture

Does BioActive Culture need to be refrigerated?

No. The gel matrix and manufacturing process mean the capsules are shelf-stable at room temperature, which is a practical advantage for travel and everyday use.

When should I take a probiotic?

With or just before food so the bacteria travel through the stomach with meal content. Many people take it at breakfast for consistency.

Can I take it while on antibiotics?

Yes. Take the probiotic at least 2 hours apart from the antibiotic dose so the antibiotic does not kill the probiotic bacteria. Continue for 1 to 2 weeks after finishing the antibiotic course for recovery.

How is this different from a yogurt drink?

Yogurt drinks contain live cultures but usually at lower counts and with different strains not matched to specific clinical evidence. BioActive Culture delivers 4 billion CFU of clinically studied strains in a protected enteric format.

Can I take it long-term?

Yes. Daily use is safe for most adults. Some people take it continuously; others take it during specific periods (travel, post-antibiotic, winter) and pause otherwise.

Is BioActive Culture a medicine?

No. It is a food supplement, not a medicine. It is not intended to diagnose, treat or cure any condition including IBS, IBD or other digestive conditions.

Is it safe in pregnancy?

Generally considered safe. La-5 and BB-12 are widely used in pregnancy internationally. Check with your pharmacist before starting.

Can children take it?

BioActive Culture is formulated for adults.