This is a Crystal Flush review I never expected to write — but after hearing the ads constantly on the radio, I finally got curious. Every time nail fungus comes up, it’s the same kind of story: “My uncle’s wife tried everything for him,” or “My grandpa had it for years and nothing worked.” It always seems to come back, no matter what people try.
Fungal infections like these affect more than just how your feet look. So I wanted to find out: What is Crystal Flush really about? Is it safe? Does it actually work — and can holistic methods do the same or better?
Let’s break it down.
What Is Crystal Flush (and What’s In It)?
Crystal Flush is marketed as a two-step system for treating nail fungus. Unlike standard creams or prescription pills, it combines an antifungal topical solution with a daily supplement — claiming to fight fungus both externally and from within.
It’s mainly targeted toward people who’ve “tried everything” and still struggle with yellow, brittle, or infected toenails.
Step 1: Topical Antifungal Formula
Includes:
- Undecylenic acid – A proven antifungal ingredient used in OTC treatments
- Essential oils – Tea tree, eucalyptus, lavender
- Penetration enhancers – Alcohol base or carrier oils
This step is applied directly to the nail and surrounding area, usually twice a day.
Step 2: Crystal Flush Balance Supplement
This is where the system gets interesting. It includes:
- Probiotics – For gut support and immune function
- Antifungal herbs – Oregano oil, garlic, caprylic acid
- Nail nutrients – Biotin and zinc
The idea? Treat the root — not just the symptom.
“Nail fungus is a symptom — not just a surface-level issue.”
— Crystal Flush marketing materials
You can find the Crystal Flush Nail Renewal Formula on Amazon here — it’s the same one featured on TV, designed to help with discolored, yellow, or cracked nails.
What Real Customers Are Saying
Positive Reviews:
“I’ve tried creams for years. This was the first thing that actually cleared it.”
“My nails are starting to look healthier after 4 weeks. I’ll keep using it.”
Some also noticed digestive improvements — possibly linked to the probiotics inside the supplement.
Negative Reviews:
“I followed all the steps, but my toenails still look the same after 6 weeks.”
“It’s okay, but for the price I expected a real change.”
There’s definitely mixed feedback, which makes it even more important to understand the ingredients and approach.
Do the Ingredients in Crystal Flush Actually Work?
The topical side is legit — but not revolutionary. Similar formulas are available OTC.
What stands out is the internal supplement. Many holistic practitioners believe gut imbalance, especially candida overgrowth, can influence recurring fungal infections.
Candida is a type of yeast that naturally lives in the gut, but when it overgrows, it can disrupt digestion, weaken immunity, and show up in the skin and nails.
→ Gut Health and What Actually Works
The supplement includes herbs often used in candida protocols, but it’s not a magic bullet. Without changes to your diet, hygiene, and gut support, results may fall short.
Holistic Alternatives to Crystal Flush
Even if Crystal Flush helps short-term, lasting results often come from a broader, more holistic approach.
What I’d Try Instead:
- Topical support — Tea tree oil or oregano oil
→ Check out The Healing Power of Aromatherapy: How Essential Oils Actually Work - Daily foot soaks — Apple cider vinegar + essential oils
→ Fill basin with warm water, 1 cup raw ACV, 10 drops tea tree oil. Soak 15–20 mins/day. Dry completely. - Gut support — Probiotics and antifungal herbs
- Supplement stack — Caprylic acid, biotin, zinc
- Clean diet — Low sugar and carbs, whole foods
- Detox practices — Saunas, hydration, maybe even a parasite cleanse
→ Parasite Cleanse Protocol
“Toenail fungus might show up on your feet — but it often starts in the gut.”
My Natural Anti-Fungal Stack — All in One Place on Amazon
So What Causes Toenail Fungus in the First Place?
- Immune suppression – Stress, fatigue, poor diet
- Gut dysbiosis – Yeast and fungal overgrowth
- Poor circulation – Especially in diabetics or inactive individuals
- Tight shoes / public showers – Prime environments for fungus
- Toxin buildup – Weakened detox pathways can make you more prone
“The bottom line? Nail fungus is often a surface-level symptom of a deeper internal imbalance.”
Final Recap: Is Crystal Flush Worth It?
If you’re looking for a system that addresses both surface and internal fungus, Crystal Flush is a decent option. But it’s not a cure-all.
For real results, most people need a combo of external treatments, internal support, and dietary changes — not just a bottle of pills or topical drops.
Frequently Asked Questions About Crystal Flush
Is Crystal Flush safe to use?
Crystal Flush uses FDA-approved undecylenic acid and widely accepted natural ingredients like probiotics and essential oils. It is generally considered safe for most people, but consult your doctor if you have underlying conditions or are taking medication.
Is Crystal Flush FDA approved?
While Crystal Flush contains FDA-approved ingredients such as undecylenic acid, the product itself is not FDA-approved as a medical treatment — which is typical for supplements and topical wellness kits.
Does Crystal Flush actually work?
Crystal Flush may help with nail fungus when paired with consistent hygiene and internal support. Some users report visible results, but deeper infections often require a more holistic or long-term approach.
What is in Crystal Flush?
Crystal Flush combines undecylenic acid, essential oils, and a supplement containing probiotics, oregano oil, caprylic acid, biotin, and zinc to support both external and internal fungal balance.
Is there a natural alternative to Crystal Flush?
Yes. Many people use daily foot soaks with apple cider vinegar and tea tree oil, along with natural antifungals like oregano oil and probiotics, to support the body’s fungal balance holistically.
Disclaimer
This post is for educational purposes only and reflects my own research and opinions. It is not intended to treat or diagnose any disease. Always consult your doctor before starting any new health protocol or supplement — especially if pregnant, nursing, or on medication.
Sources
- CDC – Nail Fungus Overview
- NIH – Undecylenic Acid Antifungal Use
- PubMed – Tea Tree Oil in Dermatology
- Frontiers in Microbiology – Probiotics and Candida
- American Family Physician – Antifungal Overview
Devin Brundell is the founder of Brundell Co., a wellness platform dedicated to natural healing, lifestyle medicine, and intentional living. He holds a Bachelor’s degree in Business Management from Southwest Minnesota State University (SMSU) and a Bachelor’s in Holistic Health Sciences from Quantum University. Devin is also finalizing certification as a Board Certified Holistic Health Practitioner through the AADP. His mission is to empower others to reclaim health through practical tools, clean living, and purpose-driven change — one intentional choice at a time.