A closer look at the ingredients behind every formula.
Salmon oil
A rich source of omega fatty acids, chosen to help maintain skin health and a softer, glossier coat.
magnesium glycinate
A gentle, well-regarded form of magnesium chosen to support calmness, relaxation and nervous system balance.
green tea extract
Included for its antioxidant profile and to support everyday cellular health and overall wellness.
lemon balm
Selected for its naturally soothing qualities, helping to encourage a calmer, more settled demeanour.
valerian root
Included to support relaxation and help take the edge off moments of tension or over-stimulation.
hyaluronic acid
Chosen to help support joint lubrication and maintain moisture within the skin.
Glucosamine
Included to support everyday joint comfort and help keep movement easy, fluid and well supported.
bovine collagen
Added to support the structural building blocks of joints, skin and connective tissue.
vitamin e
A key antioxidant selected to support skin health and help protect cells from oxidative stress.
vitamin c
Included for antioxidant support and its role in maintaining healthy collagen formation.
msm
Selected to support joint mobility and everyday comfort, particularly for active or ageing dogs.
chondroitin sulfate
Included to help support cartilage integrity and long-term joint function.
ashwagandha root
Included for its calming properties, helping to support relaxation during periods of stress or restlessness.
probiotics
Chosen to support digestive balance, everyday gut health and overall wellbeing from within.
vitamin COMPLEX
A considered blend of essential vitamins to support daily health, vitality and nutritional balance.
l-tryptophan
An amino acid chosen to support calm behaviour and emotional balance.
GMP-CERTIFIED
Manufactured to a Higher Standard
Every formula is produced in GMP-certified facilities, ensuring consistency, safety and precision at every stage. From raw ingredient sourcing to final production, each batch is handled with the same level of care you would expect from human-grade supplement standards.
What GMP Certification Means
Good Manufacturing Practice (GMP) is the benchmark for quality-controlled production.
It ensures that:
Ingredients are verified for purity and identity
Formulations are accurately dosed, every time
Production environments meet strict hygiene and safety protocols
Each batch is traceable, tested and consistent
In short - what’s on the label is exactly what’s in every chew.
Why It Matters for Your Dog
Not all supplements are created equal.
Without proper manufacturing standards, quality can vary - affecting everything from effectiveness to safety. GMP certification removes that uncertainty, ensuring your dog receives a formula that is reliable, clean and carefully controlled.
Why Choose Rusko’s
We don’t cut corners and we don’t chase trends.
Formulated with intent - every ingredient has a purpose
Produced to pharmaceutical-level standards
Consistent from first chew to last
Designed for daily, long-term use
Rusko’s is built on the belief that everyday supplements should meet a higher standard - because your dog relies on them, daily.