Tips & Guides
Straightforward answers to the everyday questions we hear most — for your dog and for you. Pick a topic, read the practical tips, then see which of our products sits in that area.
How much should my dog have?
Put in your dog’s weight and our calculator shows the daily amount straight from the feeding guide on the tub — in kilograms or pounds.
Browse by topic
Pick the topic you’re dealing with. Each topic has its own page with what to look for, what you can do at home, when to see a vet — and what is in the relevant product.
For your dog

Calm & anxiety
Anxiety, fireworks & being left alone
Shaking, panting, hiding or barking when you leave
For you

Hair, skin & nails
Thinning hair, slow growth & brittle nails
More hair in the brush, nails that split
Frequently asked questions
Are supplements a replacement for vet or medical treatment?
No. Supplements sit alongside a good diet and routine care. If your dog is unwell, on medication, pregnant or has a health condition — or you have a medical condition yourself — speak to your vet or doctor first.
Can I give my dog more than one Biotic’s Gain chew?
Often yes, but check the labels for overlapping ingredients, follow the feeding guide on each tub, and ask your vet if your dog is on any medication.
How should I introduce a new chew?
Start gradually over a few days and follow the feeding guide on the tub. This gives your dog’s tummy time to adjust.
How long should I give a new supplement?
Give any new supplement several weeks of consistent daily use before you decide whether to keep it in the routine. A product fed daily for a general reason is a slower judgement than one used around a single event.
Is the Salmon Oil suitable for cats?
Yes — our Salmon Oil is made for both dogs and cats. Follow the serving guide on the bottle for your pet’s weight. It’s currently available on Amazon Australia only.
I take biotin. Does it matter if I’m having a blood test?
Yes — tell your doctor or the clinic before any blood test. High-dose biotin can interfere with some laboratory results, and they may ask you to pause it beforehand.
Is your collagen halal?
Yes. Our Multi Collagen Peptides are halal, grass-fed and GMO-free. They’re currently available on Amazon UK and Australia.
Which Amazon store sells each product?
Our five dog chews and Biotin Gummies are on Amazon UK, US and Australia. Multi Collagen Peptides are on Amazon UK and Australia. Salmon Oil for Dogs & Cats and Whey Protein Isolate are on Amazon Australia only.
My question isn’t here. How can I ask?
Email hello@bioticsgain.com and we’ll get back to you, Monday to Friday, 9am to 5pm (UK time).
These tips are general guidance and not a substitute for advice from your vet or doctor.






