Ingredient Science Guide
Bovine Gelatin
A Capsule Shell Material Made From Partially Hydrolyzed Bovine Collagen
Bovine gelatin is a protein derived from bovine (cattle) hides, bones, and connective tissue through partial hydrolysis of collagen. It is approximately 98-99% protein by dry weight, rich in glycine (~33%), proline, and hydroxyproline, the amino acids that make up Type I and Type III collagen.
In Wellness Extract products, bovine gelatin is used exclusively as an excipient to form the softgel capsule shell. It is not included as a separately dosed active ingredient. Research on hydrolyzed collagen peptides for skin, joints, and gut health applies to a different molecular form (2,000-5,000 Da peptides) and should not be interpreted as evidence for benefits from the gelatin capsule shell material.
What It Is
What Is Bovine Gelatin?
Bovine gelatin is a protein made by partially hydrolyzing collagen from bovine (cattle) hides, bones, and connective tissue. It is roughly 98-99% protein by dry weight, rich in glycine (~33%), proline, and hydroxyproline, the amino acids that make up Type I and Type III collagen, found inside skin, tendon, and bone.
Bovine gelatin has a high molecular weight compared to hydrolyzed collagen peptides. It contains large protein chains that form a gel when cooled, the property that gives it its name and its primary uses in food, photography, and pharmaceutical capsule manufacturing. Because of this high molecular weight, gelatin behaves differently in the body than smaller, enzymatically processed hydrolyzed collagen peptides (2,000-5,000 Da).
Excipient
Used as Capsule Shell Material: Not an Active Ingredient
In Wellness Extract softgels, bovine gelatin forms the capsule shell that encloses and protects the active formulation. It is not included as a separately dosed active ingredient. The amount per capsule is not established as a therapeutic dose for any specific health outcome.
Structure
Distinct From Hydrolyzed Collagen Peptides
Hydrolyzed collagen (or collagen peptides) undergoes additional enzymatic processing to reduce molecular weight to 2,000-5,000 Da. This creates small peptides that survive digestion intact, enter the bloodstream, and signal fibroblasts. Gelatin, as used in capsule shells, is a different molecular form and has not been evaluated for the same outcomes.
Bovine Gelatin at a Glance
Reference Sheet
SourceBovine hides, bones, connective tissue
Molecular Weight~40,000-100,000 Da (varies)
Key Amino AcidsGlycine (~33%), proline, hydroxyproline
Protein Content~98-99% by dry weight
Regulatory StatusFDA GRAS; E428 (EU food additive)
Use in WE ProductsSoftgel capsule shell (excipient)
Distinct FromHydrolyzed collagen peptides (2,000-5,000 Da)
Source
Type A or Type B Gelatin from Cattle
Type A gelatin is produced by acid processing (typically from hides); Type B by alkaline processing (typically from bones and cartilage). Both types are used in pharmaceutical softgel manufacturing. Bovine gelatin is not suitable for vegetarians, vegans, or individuals with bovine protein allergies.
How It Works
How Bovine Gelatin Functions as a Capsule Shell
As a capsule shell material, bovine gelatin provides physical enclosure and protection for active ingredients. Its gel-forming properties are the key functional characteristic.
Gel-Forming
Forms a Stable, Protective Softgel Shell
Bovine gelatin dissolves in warm water and gels upon cooling, creating the semi-solid shell used in softgel manufacturing. The shell is stable at room temperature, protects the fill matrix from air and light, and is designed to dissolve in stomach acid to release the active ingredients.
Absorption
After Ingestion: Hydrolyzed Into Peptides and Amino Acids
When consumed, gelatin is digested by proteolytic enzymes into smaller peptides and free amino acids in the gastrointestinal tract. These amino acids, primarily glycine, proline, and hydroxyproline, are then available for absorption and use in normal protein metabolism.
Research Context
Hydrolyzed Collagen Research Applies to Peptides, Not Gelatin Shells
Most published research on collagen supplementation for skin, joints, and gut health specifically evaluates hydrolyzed collagen peptides (2,000-5,000 Da), not gelatin used as a capsule material. These are different molecular forms with different absorption profiles. Research on collagen peptides should not be interpreted as evidence for benefits from the gelatin capsule shell.
Biocompatibility
FDA GRAS and E428 Approved: Established Safety Record
Bovine gelatin holds GRAS status (FDA) and E428 approval (EU). It has been used in pharmaceutical and food manufacturing for over a century with an established safety record. It is derived from bovine sources, so it is not suitable for vegetarians, vegans, or anyone with a bovine protein allergy.
Research Context
What the Research on Hydrolyzed Collagen Actually Shows
The research below describes findings on hydrolyzed collagen peptides (2,000-5,000 Da), including bovine-sourced peptide products. None of the benefits mentioned below are claims about Wellness Extract's gelatin capsule shell material. It is a different molecular form used solely for formulation purposes.
Skin
Daily Collagen Peptides Improved Skin Moisture in 12-Week Human Trial
What the research found
Human RCT (n=77)A 2025 trial (77 healthy women, aged 35-55) gave 5,000 mg collagen peptides daily for 12 weeks. Skin moisture rose ~9% and transepidermal water loss decreased. These gains lasted 4 weeks after cessation. This evidence applies to hydrolyzed collagen peptides at therapeutic doses, not to gelatin capsule shell material.[2]
Joints
Collagen Peptides Reduced Knee Pain in 90-Day RCT
What the research found
Human RCT (n=100)A 2024 trial (100 adults with knee osteoarthritis) found collagen peptides reduced pain and stiffness and improved joint function vs. placebo. Just 2.5 g of one specialized collagen worked as well as 10 g of regular collagen. Again, this applies to hydrolyzed peptides at specific doses, not gelatin used as a capsule shell.[3]
Absorption
Bovine, Fish, and Porcine Collagen Show Comparable Absorption
What the research found
Crossover StudyA 2024 crossover study comparing fish, porcine, and bovine collagen hydrolysates found comparable absorption of hydroxyproline-containing peptides across all three. This confirms that bovine-sourced hydrolyzed collagen is absorbed similarly to other sources when in the hydrolysate form.[1]
Forms & Use
How Bovine Gelatin Is Used in Supplements
Bovine gelatin has two distinct roles in supplements: as a capsule shell material (excipient) and as a standalone hydrolyzed collagen supplement. These represent different molecular forms and different use cases.
Capsule Shell Use
Bovine Gelatin as an Excipient
| Attribute | Detail |
|---|---|
| Softgel shell material | Not separately dosed; forms the capsule enclosure |
| Purpose | Encloses and protects active formulation from air and light |
| Release | Dissolves in stomach acid to release active ingredients |
| WE products | Eannatto, Astaxanthin GG, GG-Essential, Bio-Qunol softgels |
As used in Wellness Extract softgels, not separately dosed. Gelatin capsules are not suitable for vegetarians or vegans. If you have a bovine protein allergy, consult your healthcare provider before use.
Hydrolyzed Collagen
Hydrolyzed Bovine Collagen as an Active Supplement (Different Form)
Research doses for hydrolyzed collagen peptides (separate product category).
| Use | Research Dose |
|---|---|
| Skin support (research) | 2.5-10 g/day hydrolyzed collagen peptides |
| Joint support (research) | 2.5-15 g/day hydrolyzed collagen peptides |
| Muscle/recovery (research) | 15-20 g/day with exercise in research protocols |
| Note | Hydrolyzed collagen is a distinct, separately dosed product, not equivalent to gelatin capsule shells |
These doses apply to hydrolyzed collagen supplement products, not to the gelatin used as a capsule shell in Wellness Extract's softgel products.
In Wellness Extract Products
Why Bovine Gelatin Is Used as the Capsule Shell
Why the form matters
Gelatin (~40,000-100,000 Da) is a different molecular form from hydrolyzed collagen peptides (2,000-5,000 Da) and behaves differently in the body.
The softgel format offers specific advantages for fat-soluble active ingredients like tocotrienols, astaxanthin, and GG, which require a lipid carrier matrix for optimal absorption.
A bovine gelatin softgel capsule encloses 90% delta + 10% gamma tocotrienol in tocopherol-free rice bran oil carrier. Third-party tested, non-GMO, soy-free.
Capsule Shell
Bovine Gelatin (~40,000-100,000 Da)
- High molecular weight; forms a gel when cooled
- Used as an excipient, not separately dosed
- Digested into peptides and amino acids
Active Ingredient
Fat-Soluble Actives
Tocotrienols, astaxanthin, geranylgeraniol, and ubiquinol are all fat-soluble. They need to be suspended in a lipid carrier (rice bran oil) to dissolve properly and be absorbed following lipid digestion pathways in the small intestine.
Carrier Oil
Rice Bran Oil (Tocopherol-Free)
Tocopherol-free, refined rice bran oil provides the lipid matrix in which the fat-soluble active ingredients are suspended. Being tocopherol-free means it does not introduce interfering alpha-tocopherol into tocotrienol formulations.
Capsule Shell
Bovine Gelatin Shell
The bovine gelatin softgel shell encloses and protects the oil-suspended active ingredients from air, light, and moisture during storage. It dissolves in stomach acid to release the fill matrix where fat-soluble absorption begins.
Result
Protected, Bioavailable Delivery
The softgel format protects sensitive fat-soluble actives from oxidation and ensures they are released with the lipid carrier needed for proper absorption, a significant advantage over powder capsules for these ingredients.
Wellness Extract Products
Vitamin E Tocotrienols
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Vitamin E Tocotrienols Supplement - Eannatto DeltaGold 125-300mg (90% Delta, Tocopherol-Free)
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Peer-Reviewed Research
Studies on Hydrolyzed Bovine Collagen (Reference Context)
The studies below are on hydrolyzed collagen peptides, a different molecular form from the gelatin used in Wellness Extract capsule shells. They are provided for scientific context only.
01
Bovine, Fish, Porcine Collagen Hydrolysates: Comparable Absorption
2024 crossover study compared absorption of hydroxyproline-containing peptides from fish, porcine, and bovine collagen hydrolysates. All three showed comparable systemic exposure.
[1]
02
Collagen Peptides (5,000 mg/day) Improved Skin Moisture in 12 Weeks
77 healthy women, 35-55 years old. 12-week trial. Skin moisture +9%, reduced water loss, denser dermal layer. Gains persisted 4 weeks post-cessation.
[2]
03
Collagen Peptides Reduced Knee Pain and Improved Joint Function at 90 Days
100 adults with knee osteoarthritis. All collagen groups outperformed placebo for pain, stiffness, and function. 2.5 g of specialized collagen matched 10 g regular collagen.
[3]Frequently Asked Questions
Evidence-Based Answers About Bovine Gelatin
No. Bovine gelatin used in softgel capsule shells is a different molecular form from hydrolyzed collagen peptide supplements. Gelatin has a much higher molecular weight (~40,000-100,000 Da) compared to hydrolyzed collagen peptides (2,000-5,000 Da). The gelatin in Wellness Extract products is an excipient; it forms the capsule shell and is not included as a separately dosed active ingredient for collagen benefits.
No. The softgel capsule shells use bovine gelatin, which is derived from cattle. If you follow a vegetarian or vegan diet, the softgel products are not suitable. Please check individual product pages; some products may be available in alternative formats.
Bovine gelatin has GRAS (Generally Recognized As Safe) status from the FDA and E428 approval in the EU. It has been used in pharmaceutical and food manufacturing for over a century with an established safety record. Individuals with a bovine protein allergy should consult their healthcare provider before use.
Fat-soluble active ingredients like tocotrienols, astaxanthin, and geranylgeraniol need to be suspended in a lipid carrier (rice bran oil) for optimal absorption. The softgel format encloses the oil-suspended actives, protects them from oxidation during storage, and releases them together with the lipid matrix needed for absorption in the small intestine; advantages that vegetarian capsules with powder fill do not replicate for these specific ingredients.
Source Transparency
References
All footnoted claims link to peer-reviewed sources. Click any citation or this header to expand.
[1]
Crossover Study, 2024 — Comparative absorption of bovine, fish, porcine collagen hydrolysates — View on PubMed
[2]
Human RCT, 2025 (n=77) — Collagen peptides skin moisture trial — View on PubMed
[3]
Human RCT, 2024 (n=100) — Collagen peptides knee osteoarthritis trial — View on PubMed
Disclaimer
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. The information on this page is provided for educational purposes only and is not a substitute for professional medical advice. Always consult your physician or a qualified healthcare provider before starting any new supplement.
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