Choosing the right small animal litter is crucial for your rabbit or guinea pig’s respiratory health, hygiene, and comfort. Not all litters are safe — some commonly sold products can cause serious harm. Here’s our 2026 guide to the safest, most absorbent options available in the UK.
Best Small Animal Litters Compared
| Product | Type | Dust-Free? | Absorbency | Compostable? | Price |
|---|---|---|---|---|---|
| Back 2 Nature | Recycled paper pellets | ✅ 99% | ★★★★★ | ✅ | £6–£12 |
| Small Pet Select Paper Pellets | Recycled paper | ✅ | ★★★★★ | ✅ | £8–£15 |
| Carefresh Natural | Paper fibre | ✅ 99% | ★★★★ | ✅ | £8–£14 |
| Cat’s Best Universal | Plant fibre pellets | ✅ | ★★★★ | ✅ | £5–£10 |
| Oxbow Eco Straw | Wheat straw pellets | ✅ | ★★★★ | ✅ | £7–£13 |
| Compressed wood pellets | Kiln-dried softwood | ⚠️ Low | ★★★★★ | ✅ | £4–£8 |
Paper vs Wood Pellet vs Straw
| Type | Pros | Cons | Best For |
|---|---|---|---|
| Paper-based | Virtually dust-free, highly absorbent, soft, safe if nibbled | More expensive, may need changing more often | Rabbits, guinea pigs, all small animals |
| Wood pellets | Excellent absorbency, cheap in bulk, good odour control | Hard surface (not ideal as sole bedding), some may be dusty | Litter tray only (not cage floor) |
| Straw pellets | Natural, highly absorbent, can be composted | Less common, may not control odour as well | Eco-conscious owners |
What to Avoid
| ❌ Unsafe Product | Why It’s Dangerous |
|---|---|
| Clumping cat litter | Can cause fatal intestinal blockages if ingested |
| Cedar shavings | Contains phenols that cause liver damage and respiratory irritation |
| Pine shavings (untreated) | Similar phenol risk — only kiln-dried pine pellets are safe |
| Scented litter | Artificial fragrances irritate sensitive respiratory systems |
| Newspaper (printed) | Ink may be toxic; poor absorbency; gets soggy |
Our Top Pick: Back 2 Nature
Back 2 Nature is made from 99% recycled paper, is virtually dust-free, and offers excellent natural odour control. Its flatter, ridged pellet design is soft on sensitive paws and prevents rolling. Fully biodegradable and compostable. Available at most UK pet shops and online retailers.
Litter Tray Setup Tips
- ✅ Line the tray with a layer of newspaper (unprinted), then add 2–3 cm of litter
- ✅ Place hay on top of or beside the litter tray — rabbits like to eat while they go
- ✅ Spot clean daily, full change every 3–4 days
- ✅ Use litter in the tray only — use separate bedding (hay, fleece) for the rest of the cage
- ✅ Never use wood pellets as sole cage flooring — they’re too hard on feet
Frequently Asked Questions
What is the safest litter for rabbits?
Paper-based litters like Back 2 Nature and Small Pet Select are the safest. They’re dust-free, non-toxic if nibbled, and don’t contain harmful phenols.
Can I use cat litter for rabbits?
Never use clumping cat litter — it can cause fatal intestinal blockages. Non-clumping, paper-based cat litter (like Cat’s Best Universal) is safe.
Are wood pellets safe for guinea pigs?
Kiln-dried wood pellets are safe for the litter tray only. They’re too hard for cage flooring. Never use cedar or untreated pine shavings.
How often should I change small animal litter?
Spot clean daily and do a full litter change every 3–4 days. In hot weather, change more frequently to prevent ammonia build-up.