Pure Encapsulations Colostrum 40% IgG

Heavy training blocks come with a well-documented dip in immune defenses in the hours after a hard session, part of why endurance athletes report more upper respiratory symptoms during high-volume periods than the general population. Colostrum is one of the few ingredients studied in that specific context, in physically active people rather than a general wellness population.

Pure Encapsulations Colostrum 40% IgG delivers a concentrated, standardized dose of the immune and growth factors found in early bovine milk, giving your body extra support right when training volume is working against it.

Consistent Support Every Time – Colostrum's potency naturally varies batch to batch, but this formula is standardized to 40% IgG, so you get a reliable, concentrated dose instead of guessing at what you got.

Support For How You Train – Colostrum has specifically been studied in physically active people rather than a sedentary wellness population, so the research lines up with why an athlete would take it in the first place.

Wider Immune Coverage – Alongside immunoglobulins, this formula naturally contains lactoferrin and growth factors, giving your immune system several supportive compounds instead of relying on just one.

What is Colostrum?

Colostrum is the nutrient-dense milk mammals produce in the first 24 hours after birth, concentrated in immune and growth factors before regular milk production begins. This formula is sourced from BSE-, hormone-, pesticide-, and antibiotic-free U.S. dairy farms, defatted, and processed at low heat to preserve the activity of its proteins, then standardized to 40% IgG.

Beyond IgG, colostrum naturally contains lactoferrin, proline-rich polypeptides, and insulin-like growth factors, each playing a different role in supporting immune health. Those same growth factors and polypeptides also support intestinal integrity, which matters for athletes whose gut lining takes on added stress during long or high-intensity training.

How to Use Pure Encapsulations Colostrum 40% IgG

Dose: Take 2 capsules, 2 to 3 times daily, on an empty stomach or at least 30 minutes before a meal, with 8-12oz of water.

Take your first dose before breakfast, and time additional doses around your training schedule rather than with meals, since colostrum's proteins are better preserved on an empty stomach.

Contains milk and is not suitable if you have a dairy allergy or sensitivity.