C Synergy for Dogs by Standard Process: Immune, Skin & Tissue Support
As a holistic veterinarian, I see every day how the right nutritional support can strengthen a dog’s resilience, healing ability, and overall vitality. One supplement I often reach for when immune support and connective tissue health are concerns is C Synergy for Dogs.
This formula has been around for decades, and for good reason. It provides whole food vitamin C along with targeted glandular and botanical ingredients that support immune response, collagen production, and healthy connective tissue. When used thoughtfully, it can be a valuable addition to a well balanced canine wellness plan.

What Is C Synergy for Dogs?
C Synergy is a whole food based supplement designed to support normal immune function and healthy connective tissue. It provides antioxidant vitamin C in a form the body recognizes and uses efficiently, along with synergistic ingredients that support stress response, tissue repair, and overall cellular health.
Unlike synthetic vitamin C alone, this formula combines vitamin C with whole food cofactors that help the body absorb and use it properly.
Why Vitamin C and Collagen Matter for Dogs
Vitamin C plays a central role in collagen production. Collagen is a structural protein that supports skin, joints, ligaments, blood vessels, and connective tissues throughout the body.
Collagen helps:
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Maintain skin strength and elasticity
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Support joint and connective tissue integrity
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Aid wound healing and tissue repair
Vitamin C is also a powerful antioxidant. Antioxidants help neutralize free radicals, which are unstable molecules that can damage cells during stress, inflammation, illness, or normal aging.
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Health Benefits of C Synergy for Dogs
C Synergy is often used to support dogs who need extra immune or connective tissue support. In practice, I most commonly use it for the following goals:
Immune System Support
The combination of vitamin C, rose hips, echinacea, and medicinal mushrooms helps support a healthy and appropriate immune response. This can be helpful during periods of stress, seasonal challenges, aging, or recovery.
Connective Tissue and Skin Health
Because vitamin C is essential for collagen production, this supplement supports skin integrity, wound healing, and connective tissue strength. This is especially valuable for senior dogs or dogs with higher physical demands.
Adrenal and Stress Support
The inclusion of bovine adrenal provides nutritional support for the adrenal glands, which help regulate stress response, metabolism, and energy balance.
Antioxidant Protection
Whole food vitamin C, acerola, rose hips, and mushrooms provide antioxidant protection that helps defend cells from oxidative stress.
Ingredients in C Synergy for Dogs and What They Do
Each tablet provides a thoughtfully designed blend of nutrients and whole food ingredients.
Key Nutrients Per Tablet
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Vitamin C (100 mg): Supports collagen production, immune health, and antioxidant protection
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Sodium (10 mg): Supports normal cellular and nerve function
Proprietary Whole Food Blend
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Organic rose hips and acerola: Whole food sources of vitamin C and bioflavonoids
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Echinacea angustifolia and purpurea roots: Immune system support
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Veal bone PMG extract: Supports cellular and connective tissue health
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Bovine adrenal: Nutritional support for stress response
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Organic buckwheat flour and juice powder: Provides phytonutrients and fiber
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Organic reishi and shiitake mushroom powders: Immune and antioxidant support
Contains wheat. This matters for dogs with known wheat sensitivities.

How C Synergy Supports the Body
C Synergy works by providing nutrients the body uses as building blocks rather than forcing a response.
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Vitamin C supports collagen synthesis and antioxidant balance
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Whole food cofactors improve absorption and utilization
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Glandular ingredients provide targeted nutritional support
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Botanical compounds help regulate immune response rather than overstimulate it
This balanced approach is why it fits well into holistic protocols.
Suggested Use and Administration
Dosing is based on body weight.
Small dogs (1 to 20 lbs):
2 tablets daily
Medium dogs (21 to 50 lbs):
3 tablets daily
Large dogs (51 lbs and up):
4 tablets daily
In practice, dosing may be adjusted based on your dog’s size, age, and health status.
Tablets can be:
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Given directly
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Crushed and mixed into food
Consistency matters more than perfection. Daily use is typically more effective than occasional dosing.
Safety Considerations and Possible Side Effects
C Synergy is generally well tolerated. Mild digestive upset can occur when first introduced, especially if started at full dose right away.
Possible reactions may include:
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Loose stools
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Mild stomach upset
To reduce this risk, I often suggest starting with a smaller amount and gradually increasing.
Use caution in dogs with known allergies to plants in the daisy family, such as echinacea. Always consult your veterinarian if your dog is pregnant, nursing, on medication, or managing a chronic condition.

When I Commonly Recommend C Synergy
In my practice, I often consider C Synergy for dogs who:
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Need immune system support
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Are recovering from illness, injury, or surgery
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Are aging and need connective tissue support
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Experience frequent stress or environmental challenges
It is not a replacement for proper nutrition, exercise, or veterinary care. It works best as part of a thoughtful wellness plan.
Frequently Asked Questions
What is C Synergy for Dogs?
C Synergy is a whole food based supplement that provides vitamin C and supportive ingredients to promote normal immune function and healthy connective tissue in dogs.
Why does my dog need vitamin C if dogs can make their own?
Dogs can produce vitamin C, but stress, illness, aging, and inflammation can increase demand. Supplementing can provide additional support during those times.
How long does it take to see results?
Some dogs show changes within a few weeks, especially with skin or immune support. For connective tissue support, benefits are often more gradual.
Can C Synergy be given with other supplements or medications?
In many cases, yes. It is always best to review the full supplement and medication list with your veterinarian to avoid interactions.
Is C Synergy safe for long term use?
When used appropriately and at recommended doses, it is commonly used as part of long term wellness support.
