Biotin and collagen are two common ingredients found in shampoos and conditioners, as well as an array of multivitamins. They both claim to promote hair growth, but which one is better overall?
We took a closer look at the makeup and composition of the substances, and sent them head-to-head to determine an overall victor to boost thinning hair: read on for our verdict!

Biotin Vs Collagen: An Overview
Biotin is a vitamin that helps your body produce energy from food. Collagen is a protein that gives structure to skin, bones, tendons, ligaments, cartilage, muscles, blood vessels, and organs.
Both are essential nutrients for maintaining good health.
Both are important for growing healthy hair. The main difference between them is their source. Biotin comes from animal sources such as eggs, milk, meat, fish, poultry, and cheese.
Collagen comes from plants such as soybeans, wheat, corn, rice, oats, barley, and beans.
Both can be used topically to help with hair loss. However, they have different properties; biotin has been shown to stimulate hair follicles and increase hair growth when applied directly to the scalp.
It’s also effective when taken orally. Collagen has been shown to improve hair (see also: What Does Collagen Do For Hair?)thickness and strength when applied topically.
How do you know if you need biotin or collagen supplements? The decision may depend on a number of factors, as we will see below.
What Is Biotin: A Closer Look?
Biotin is naturally present in all living organisms, including humans. It plays a role in many metabolic processes, including cell division, DNA synthesis, and fat metabolism.
It’s most commonly known for its ability to support hair growth. When applied topically, it stimulates hair follicle cells to grow new hairs.
This makes it useful for people who experience hair loss due to hormonal changes, stress, or other conditions.
Biotin comes in a range of forms, including tablets, capsules, liquids, creams, gels, lotions, oils, sprays, and powders. You can find it in products like shampoo, conditioner, and hair serum.
The recommended dosage varies depending on the product. Some recommend taking 1 mg per day, while others suggest 2 mg daily.
Is Biotin Safe?
Yes, biotin is safe for use by adults. There are no reported side effects associated with using this supplement.
However, there are some precautions you should take before starting to use it. If you have any medical conditions, consult your doctor before beginning supplementation.
Pregnant women should also consult their doctor before taking biotin – this also applies to breastfeeding mothers.
What Are The Benefits Of Biotin?
There are several benefits of biotin. Here are just a few:
Supports Healthy Skin And Nails
Your nails and skin require vitamins to stay strong and healthy. Biotin supports these functions by helping your body metabolize fats and proteins.
Promotes Strong Bones
Biotin is an essential nutrient for bone development. It helps maintain healthy teeth and bones, which reduces the risk of osteoporosis.
Improves Digestion
Biotin improves digestion by supporting the function of digestive enzymes. It also promotes the absorption of iron, calcium, and magnesium(see also: When To Take Magnesium).
Helps Maintain Normal Blood Sugar Levels

Biotin regulates glucose levels in the bloodstream. It helps prevent diabetes and reduce insulin resistance. This can help improve hair health by reducing inflammation and improving blood flow.
Protects Against Cancer
Some studies show that biotin may protect against cancer.
In one study, researchers found that biotin was able to inhibit cancerous tumors in mice, and this is believed to be related to the fact that biotin supports healthy liver function.
It appears to play a role in preventing breast cancer, colon cancer, prostate cancer, and leukemia.
How Does Biotin Help Thinning Hair?
Biotin is an essential vitamin that plays a key role in metabolism and energy production. It’s also involved with DNA synthesis, cellular division, and cell signaling.
Biotin can help thin hair by supporting healthy hair follicle development.
This means that more hair follicles will grow, which can result in stronger, healthier hair. It can also prevent hair loss, as well as help strengthen existing hair.
What Is Collagen?
Collagen is a protein that provides structure to our bodies. It’s found throughout the human body but especially concentrated in the skin, tendons, ligaments, and bones.
When applied topically, collagen helps promote healing and repair damaged tissues. It’s often used to treat scars, stretch marks, wrinkles, and other signs of aging.
Some studies also show that collagen may help improve blood flow to the scalp, which could lead to thicker, fuller-looking hair.
What Are The Benefits Of Collagen?
There are a number of benefits of collagen, and these include:
Reduces Wrinkles
Collagen is known as “the glue of life” because it holds together tissue and organs. When applied topically, it can help reduce fine lines and wrinkles.
Treats Scars
If you have a scar, applying collagen directly to the affected area can help speed up its healing process. You can use a gel or cream form of collagen.
Promotes Skin Health
Collagen is important for maintaining healthy skin. It keeps connective tissue strong and flexible, which prevents sagging. It also helps keep the skin smooth and supple.
Fights Cellulite
Cellulite is a condition where fat pockets appear under the skin. These pockets cause dimples and bulges in the skin.
Applying topical collagen can help firm and tone cellulite-prone areas like thighs, hips, buttocks, and stomachs.
How Does Collagen Help Thinning Hair?
The most common way people apply collagen to their hair is through shampoos and conditioners.
There are many different types of collagen available, including hydrolyzed collagen, gelatinized collagen, and cross-linked collagen.
Each type has unique properties, so you should choose the right product based on your needs.
Collagen can help thinning hair by increasing circulation to the scalp. It also promotes cell growth, which can help stimulate new hair follicles.
Which Is Better For Thinning Hair: Biotin Or Collagen?
Both biotin and collagen can be beneficial for thinning hair, but both products tend to work in slightly different ways – and so the largest benefits tend to come from using both products together.
This will allow you to get the best results possible, and enjoy the optimum results.
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