Choosing between Ark Naturals Protection+ and Soft Shield comes down to texture: Protection+ is the firmer chew for dogs with a strong, healthy bite, while Soft Shield is the soft-baked version for gentler mouths, seniors, and dogs who do better with something they can chew easily. Both wear the same Asta-Shield coating, so you're not trading away the antioxidant feature either way — you're simply matching firmness to your dog. At Ark Naturals, we built the pair so owners could keep the coating they like while picking the chew their dog can handle.
What Asta-Shield actually is
Asta-Shield is our name for the coating on these chews, and its headline ingredient is astaxanthin, a naturally sourced antioxidant. Antioxidants are a normal part of a balanced approach to canine wellness, and the coating is a feature of the chew rather than a remedy for any medical condition. Both Protection+ and Soft Shield carry it, which is why the decision between them is about the chew itself, not the coating.
The real work of any dental chew, coating aside, is mechanical: as your dog chews, the chew helps wipe plaque off the tooth surface. Veterinary bodies like the World Small Animal Veterinary Association describe home care as one piece of a broader dental plan, and both chews slot into that everyday-maintenance role.
Protection+: firm chew for a strong bite
Protection+ is the firmer, traditional chew in this pair. It rewards dogs who genuinely gnaw, because the resistance is part of how it helps clean. If your dog has a healthy mouth, chews with enthusiasm, and has no trouble with harder textures, Protection+ gives him the fuller workout — and it comes in a mini size for small dogs, too.
It's the right pick when your dog's teeth and gums are in good shape and you want the more substantial daily chew.
Soft Shield: the gentle, soft-baked option
Soft Shield takes the same Protection+ idea and makes it soft-baked. It flexes under the tooth instead of demanding force, which suits older dogs, dogs with worn or fragile teeth, dogs missing a few teeth, or simply dogs who turn their noses up at harder chews. You keep the Asta-Shield coating and the daily chewing action, in a format a delicate mouth can manage comfortably.
For a lot of senior-dog owners, Soft Shield is the answer to "I want to keep up dental care, but I'm nervous about a hard chew."
How to decide
Run through your dog's mouth and habits:
- Bite strength and tooth health. A strong, healthy chewer suits Protection+; a gentle, aging, or compromised mouth suits Soft Shield.
- Age. Younger dogs with sound teeth have more latitude; seniors usually do better soft-baked.
- Chewing preference. If your dog refuses firm chews, a soft one he'll actually eat wins every time — the best chew is the one your dog takes daily.
- Size. Match the chew to your dog's weight, and use the mini Protection+ for the smallest dogs.
If you're still torn, browse both within the Ark Naturals dog collection and, for anything health-related, ask your veterinarian.
Using them the right way
With either chew, give one a day at a steady time and supervise while your dog eats. Take away any small piece your dog might swallow whole, and remember the chew adds calories to the day. If your dog has existing dental problems, is elderly, or is on a special diet, check with your veterinarian before you introduce either one.
When neither chew is enough
No chew, firm or soft, treats dental disease. Ongoing bad breath, red or bleeding gums, loose or discolored teeth, or a dog who's suddenly picky about food are signs to see your vet rather than swap chews. Your veterinarian can examine below the gumline and decide whether a professional cleaning is needed. These chews are maintenance for a healthy mouth, full stop.
Frequently asked questions
Do Protection+ and Soft Shield use the same coating?
Yes — both carry the Asta-Shield coating with astaxanthin, so the antioxidant feature is the same across the two. The difference is entirely in the chew's firmness and how easy it is for your dog to work.
My dog is middle-aged with good teeth — which should I choose?
Either can work, so let his chewing style guide you. If he's an eager chewer, Protection+ gives more of a workout; if he's indifferent to firm chews, Soft Shield keeps the habit painless. Your vet can weigh in if you're unsure about his teeth.
Can I switch from Protection+ to Soft Shield as my dog ages?
That's a common and sensible transition. As teeth wear or a mouth gets more sensitive, moving to the soft-baked version keeps daily care going comfortably. Mention the change to your veterinarian at your dog's next checkup.
The bottom line
Protection+ and Soft Shield give you the same Asta-Shield coating in two textures, so the choice is really about your dog's bite and mouth: firm for strong, healthy chewers, soft-baked for seniors and gentle eaters. Match the format to the dog, keep the routine daily, and let your veterinarian guide anything beyond upkeep. See both chews and the full range at Ark Naturals.