Can Bigen Hair Dye Cause Hair Loss? Research on Safety and Chemical Effects

Does Bigen Hair Dye Cause Hair Loss?

Bigen is a popular semi-permanent hair dye known for its ability to create vivid, long-lasting color. But some users have raised concerns about potential hair damage and loss when using this ammonia-free formula. Read on to learn more about Bigen, its hair coloring process, and what the research says regarding its safety and hair health effects.

What is Bigen Hair Dye?

Bigen is a demi-permanent hair color made by Hoyu Co. Ltd in Japan. It uses a lower amount of developer than permanent dyes but still alters the hair's underlying structure to deposit color that lasts 4-12 weeks.

Bigen comes in over 50 vivid shades ranging from natural hues to fantasy colors like electric blue or hot pink. It's praised for its bright, saturated results and not requiring a bleaching or prelightening step. The formula is ammonia-free but does contain other chemicals to dye hair.

How Bigen Works on Hair

Here is an overview of how Bigen semipermanent hair dye chemically alters the hair:

• Opens the cuticle, allowing dye molecules to enter.
• Oxidizing agents swell the hair shaft to let in more color.
• Dye molecules deposit inside the cortex and expand.
• Developer shrinks back down, sealing in permanent color.
• Cuticle closes over colored hair shaft.

Bigen uses a lower volume developer than permanent color but still penetrates into the cortex for longer lasting results. This chemical processing can damage hair over time.

Dangers and Side Effects of Bigen

While loved for its vivid, lasting colors, Bigen semi-permanent hair dye does come with some risks and potential adverse effects:

• Skin irritation or allergic reaction
• Damage to hair cuticle protective layer
• Weakened, brittle hair prone to breakage
• Dry, dehydrated hair lacking elasticity
• Hair loss from broken hairs or clogged follicles
• Increased fade and color stripping requiring repeat dying

Many of these effects are seen with long-term, repeated use as the chemicals alter the hair's structure. But some users may see problems after just one application.

Evidence of Bigen Causing Hair Loss

There are several pieces of evidence indicating Bigen semipermanent hair dye can lead to increased hair shedding and loss over time:

• Contains paraphenylenediamine (PPD) which is linked to hair loss.
• PPD may cause allergic reactions and inflammation.
• Chemical processing damages cuticle protective layer.
• Ingredients swell and alter underlying hair cortex.
• Frequent re-dying required leads to more damage.
• User reviews cite increased shedding after use.
• Those with fine or thinning hair at higher risk.

While correlation does not always mean causation, the chemical mechanisms of Bigen explain how it could contribute to hair loss, especially with repeated use.

Research and Studies on Hair Dye and Hair Loss

Several scientific studies have linked hair dye use with potential hair loss and damage:

• A 2021 study found PPD can induce hair loss by harming follicles.
• A 2019 study showed those who dyed hair regularly had lower hair density.
• A 2018 study correlated dyeing hair with a higher likelihood of frizz, split ends and breakage.
• A 2001 study found hair dye disrupted amino acids vital for hair strength.

While more research is still needed, these studies demonstrate hair dye - especially over the long run - correlates with damage, breakage, and increased hair shedding.

Tips to Minimize Hair Loss from Bigen

You can reduce the risk of excessive shedding or thinning when using Bigen by:

• Doing a patch test before full application.
• Following all instructions carefully.
• Using a protein filler before coloring hair.
• Only leaving on for recommended time.
• Rinsing thoroughly after use.
• Using Olaplex or bonding treatments.
• Avoiding overprocessing with bleach.
• Using conditioning and repairing hair masks.
• Taking hair supplements like biotin.
• Seeing a dermatologist if you have scalp reactions.

Safer Semi-Permanent Alternatives

For lower risk of hair loss, consider switching to gentler semi-permanent hair dyes like:

• Celeb Luxury Viral Color Wash - vegan and conditioning formula
• Overtone Coloring Conditioner - moisturizing deep treatment
• Adore Creative Image Semi-Permanent Hair Color - no ammonia or peroxide
• Manic Panic - cream-based punk rock colors
• Arctic Fox Semi-Permanent Hair Dye - vegan and cruelty-free
• Lunar Tides Hair Dye - professional salon-quality results

While no hair dye is completely risk-free, these gentler options are less likely to cause excessive hair damage or loss.

The Takeaway

Overall, frequently dyeing hair with Bigen or other semi-permanent dyes containing harsh chemicals like PPD does appear to increase the risk of damage, breakage, and eventual hair loss over time. This seems especially true for those with already fine or thinning hair.

However, minimizing chemical processing, using repairing treatments, and taking hair health supplements can help counteract some of the potential damaging effects. For lowest risk, those concerned with hair loss may want to consider semi-permanent conditioning dyes or more gradual root touch up options.

As with any hair dye, it's impossible to predict with certainty how your individual hair and scalp will react. So patch test before use, closely follow instructions, and stop immediately if you notice any adverse reactions.

Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new treatment regimen.