NO FILLERS
Clinically backed results
Two Superfoods
Your gut is the root.
We fix it at the foundation.
Meet our high-potency colostrum tonic.
Clinically studied bioactives that help restore gut integrity, support immune defences and promote healthier skin.
Trusted by nutritionists and formulated with 200+ bioactive compounds.
Colostrum
Fortifies gut health, strengthens immunity, supports recovery, and promotes collagen production.
Aronia
One of the world’s most potent antioxidants, proven to combat oxidative stress, protect skin, and support cardiovascular health.
The Benefits
Immunity & Gut Health
Performance & Recovery
Mood, Focus & Energy
Skin & Hair Vitality
What our customers say
Built from years of gut, skin and hormonal imbalance.
I created Loustra because I needed a solution that worked at the foundation, not a surface-level fix. Vital Tonic is the product I couldn’t find — potent, clean and designed for real results.
— Oliwia Romanowska, Founder & CEO
Foundations By Loustra
Colostrum Guide: Benefits, Wellness, and How to Use It
How to Take Colostrum Supplements: Dosage, Timing, and Best Practices
New to colostrum? Learn how to take it for the best results. From dosage guideline...
Grass-Fed Colostrum: Why Ethical Sourcing Matters for Your Health
The quality of colostrum depends on how it’s sourced. Discover why grass-fed, calf...