Here are Australian (and widely‑available in Australia) cat‑care/food labels that advertise natural recipes or specifically say they avoid artificial preservatives. I’ve included a source for each so you can check current product wording and specific recipes (formulations can change, so always read the pack or manufacturer site):

• Ivory Coat — no added artificial colours, flavours or preservatives. (ivorycoat.com.au)
• Black Hawk — states no artificial preservatives/colours/flavours; uses natural preservatives (e.g. rosemary extract, vitamin E). (blackhawkpetcare.com)
• ZIWI Peak — air‑dried / wet recipes: “free from … artificial preservatives.” (ziwipetfood.com.au)
• Feline Natural (K9 / Feline Natural family) — freeze‑dried / canned lines: “no artificial preservatives” / no gelling agents. (77paws.com.au)
• Applaws — wet tins/pouches: “no colours, flavours or preservatives.” (applaws.com.au)
• Pure Life (Australian brand) — markets “no fillers or artificial preservatives” on several cat recipes. (purelifepetfoods.com.au)
• ADVANCE (Mars Petcare Australia) — many ADVANCE wet/dry cat formulas marketed “no added preservatives” / “no added artificial preservatives.” (justforpets.com.au)
• Evolution (Australian Holistic range) — states “contains no artificial colours, flavours or preservatives.” (evolutionpet.com.au)
• Pet Food Australia / some smaller Australian natural brands (examples sold locally) — several product pages state “no artificial preservatives.” (see product listings). (petfoodaustralia.com.au)
• BIOpet / Purely Natural (smaller Australian ranges) — advertise they do not use artificial preservatives (use mixed tocopherols/rosemary). (purelynatural.com.au)

Quick tips when you shop:

• Look for wording such as “no artificial preservatives/colours/flavours” on the pack and check the ingredient list for known synthetic preservatives (BHA, BHT, ethoxyquin, propyl gallate).
• Many “natural” brands still use natural/acceptable preservatives (mixed tocopherols, citric acid, rosemary extract, vitamin E) — those are commonly listed on ingredient panels. (blackhawkpetcare.com)

If you’d like, I can:

• Narrow this to only Australian‑made brands, or only grooming/cleaning products (you asked “cat care” which can mean food, treats or grooming items), or
• Pull the current ingredient list for specific recipes you’re interested in to confirm whether that particular product avoids artificial preservatives.