Keratin is the protein that makes up almost all of your hair. When hair loses keratin, it becomes weak, dry, and prone to breakage. Salon keratin treatments smooth hair from the outside, but many use formaldehyde, a chemical linked to health risks by the FDA and OSHA. Keratin supplements like Hair Rescue work differently. They give your body the building blocks to make its own keratin from within, supporting hair strength over two to three months of regular use, without the chemical exposure of salon treatments.
What Is Keratin?
Keratin is a protein. It is the main building block of your hair, skin, and nails. In fact, about 95 percent of each hair strand is made of keratin.
Think of keratin like bricks in a wall. Strong, well built bricks make a strong wall. Strong keratin strands make strong, smooth hair.
Why Does Hair Need Keratin?
Keratin gives hair its structure. It holds the hair shaft together and protects it from damage. Healthy keratin levels help hair:
Stay strong and resist breakage Look smooth and shiny Hold its shape Grow at a normal rate
Your body makes keratin on its own. But things like poor diet, heat styling, sun exposure, and harsh chemicals can break down keratin faster than your body can replace it.
What Happens When Hair Lacks Keratin?
When keratin levels drop, hair often becomes:
Dry and rough to touch Prone to split ends and breakage Dull instead of shiny Frizzy and hard to manage Slower to grow
If you notice these signs, your hair may need more support from the inside, not just better shampoo.
Salon Keratin Treatments: How They Work
Salon keratin treatments, sometimes called keratin smoothing or Brazilian blowouts, coat the outside of your hair with a keratin based formula. Heat from a flat iron then seals this coating onto the hair shaft.
This can make hair look smoother and shinier right away. But the effect is temporary. It fades as your hair grows out and gets washed, usually within two to three months.
The Formaldehyde Problem
Many salon keratin treatments use formaldehyde or a related chemical called methylene glycol to make the smoothing effect last. When heated, these chemicals release formaldehyde gas.
The FDA and OSHA have both raised safety concerns about these treatments. Formaldehyde exposure has been linked to eye and throat irritation, breathing problems, and long term health risks with repeated exposure. Some salons advertise their treatments as formaldehyde free, but this is not always accurate, so it is worth asking your stylist directly about the exact ingredients used.
Keratin Supplements: A Safer Way to Support Hair
Instead of coating hair from the outside, keratin supplements work from within. They give your body raw materials such as hydrolyzed keratin protein, biotin, and amino acids. Your body uses these to build new, healthy hair strands as they grow.
This approach does not involve heat or chemical fumes. It supports the hair you already have and the hair still growing underneath your scalp.
How Hair Rescue Works
Beautywise Hair Rescue is a daily supplement built around this idea. It combines hydrolyzed keratin protein and biotin to support keratin production, along with avocado oil to nourish the scalp and reduce dryness. It also contains MSM and vitamin C, which help the body produce collagen and keratin naturally.
Most people take one to two capsules a day with a meal. Visible improvements in hair strength and thickness usually appear after two to three months of consistent use. If you want support for both skin and hair together, Beautywise also offers a wider range of skin and hair supplements designed to work well together.
Salon Treatments Compared to Keratin Supplements
Here is a simple way to compare the two options.
Salon keratin treatments: Coat the outside of hair Give quick, visible smoothness Often involve heat and chemicals Results fade within a few months May carry health risks with repeated use
Keratin supplements: Support hair growth from within Results build up gradually No heat or chemical exposure Support ongoing hair health, not just appearance Work best with consistent daily use
Neither option is wrong for everyone. But if your main concern is long term hair health rather than a one time smoothing effect, supplements are generally the gentler choice.
How to Add Keratin Support to Your Routine
Getting more keratin support does not have to be complicated. Try these simple steps.
Eat enough protein every day, such as eggs, lentils, and fish Add a keratin and biotin supplement like Hair Rescue to your daily routine Limit heat styling tools to a few times a week Use a mild, sulfate free shampoo Be patient, since real hair changes take a few months to show
Conclusion
Keratin is the protein that holds your hair together, and keeping it strong matters more than any single salon visit. Salon keratin treatments can smooth hair quickly, but many rely on formaldehyde, a chemical that health agencies have flagged as risky with repeated use. Keratin supplements take a slower but steadier path. They support your body's natural keratin production, working with your hair rather than just coating it. For most people focused on long term hair health, building keratin from within with a daily supplement like Hair Rescue is a simple, low risk habit worth adding to your routine.
Frequently Asked Questions
What does keratin do for hair?
Keratin is the main protein in hair. It gives each strand strength, structure, and shine. Without enough keratin, hair becomes weak and prone to breakage.
Can you add keratin back into your hair?
Yes. You can add keratin through salon treatments that coat the hair, or through supplements that support your body's own keratin production from within.
Are salon keratin treatments safe?
Many salon keratin treatments use formaldehyde or related chemicals to make the effect last. The FDA and OSHA have both raised safety concerns about these ingredients, especially with repeated use.
What is formaldehyde and why is it used in keratin treatments?
Formaldehyde is a chemical that helps bond keratin to the hair shaft when heated, creating a smooth, straight look. It is also linked to health risks like irritation and long term exposure concerns.
Do keratin supplements really work?
Keratin supplements provide the building blocks your body needs to make healthy hair. With consistent use over two to three months, many people notice stronger, thicker feeling hair.
How long do keratin supplements take to show results?
Most people need about two to three months of regular use before seeing a visible difference, since hair grows slowly and needs time to reflect internal changes.
Is Hair Rescue the same as a salon keratin treatment?
No. Hair Rescue is a supplement taken daily. It supports keratin production inside the body, unlike salon treatments that coat the outside of the hair with heat and chemicals.
Can I take a keratin supplement and still get salon treatments?
Yes, the two can be used together. A supplement supports overall hair health from within, while a salon treatment affects only the outer appearance of hair.
What foods contain natural keratin building blocks?
Eggs, fish, lentils, nuts, and leafy greens all provide protein, biotin, and other nutrients your body uses to build keratin.
Who should avoid keratin salon treatments?
Pregnant women and people with respiratory conditions are often advised to avoid formaldehyde based treatments. It is best to check with a doctor or dermatologist if you are unsure.