Supercharge Your Immune System With High-Dose Vitamin C IV
The top-rated High-Dose Vitamin C IV therapy near me in St. Johns, Ponte Vedra & Nocatee, FL
High-Dose Vitamin C IV delivers pharmaceutical-grade ascorbic acid directly into your bloodstream — bypassing the gut for 100% bioavailable immune, antioxidant, and recovery support. RN-administered under physician oversight in St Johns. Start with a free consultation.
Claim Your Free High-C IV Consultation
Drop your info — we'll take you straight to our booking page to lock in your free consultation. No obligation.
Immune Defense · Antioxidant Support · Recovery
*Individual results vary. Dosing personalized after your free in-person consultation.
Sound Familiar?
High-Dose Vitamin C IV is built for guests who want serious immune, antioxidant, and recovery support that oral vitamin C simply can't deliver.
Oral Vitamin C Hits a Ceiling
Your gut caps how much vitamin C you can absorb from pills. IV bypasses that ceiling — 100% bioavailable, straight to your cells.
Oxidative Load From Modern Life
Travel, training, stress, and packed schedules pile on oxidative stress. High-C provides pharmaceutical-grade antioxidant support your body can actually use.
Slow Recovery & Weak Immune Response
When you're run down or feeling something coming on, oral supplements are too little too late. High-C IV floods the system fast.
From Consultation to Full-Body Antioxidant Reset.
Every High-C IV at iCRYO St Johns is delivered by a licensed RN with personalized dosing under physician oversight.
Free Consultation
Sit down with our medical team to review your goals — immunity, recovery, antioxidant support — and confirm High-C is right for you.
Personalized Dosing
We map a starting dose based on your goals and tolerance — 25,000 mg for foundational support, or 50,000 mg for advanced antioxidant push.
45–90 Minute Infusion
Settle into our infusion lounge. Your RN administers pharmaceutical-grade ascorbic acid with extra hydration. Work, read, or unwind.
Feel The Lift, Then Maintain
Many guests feel sharper, more resilient, and recover faster within the first few sessions. We dial in the right cadence for you.
Pharmaceutical-grade ascorbic acid · Medical grade · Personalized dosing.
Two Dose Options. One Pharmaceutical-Grade IV.
High-C IV is RN-administered in our St Johns lounge under physician oversight. Your free in-person consult dials in the right dose for your goals.

25,000 mg High-C IV
Immune support · Energy · Recovery
- Foundational immune defense and antioxidant support
- Great for cold & flu season, travel, and post-workout recovery
- Comfortable 45–60 minute infusion
50,000 mg High-C IV
Advanced antioxidant push · Intensive support
- Higher therapeutic dose for serious antioxidant support
- 60–90 minute infusion with extra hydration
- Personalized dosing reviewed at your free consult
Pharmaceutical-grade ascorbic acid · RN-administered · Physician oversight at every step. Pricing reviewed at your free consultation.
One Infusion. Six Reasons St Johns Books High-C.
However you're spending your energy, High-C helps you keep up.
Immune Defense
Popular during cold & flu season and anytime guests feel something coming on — flood the system with pharmaceutical-grade vitamin C.
Athletic Recovery
Powerful antioxidant support for training-induced oxidative stress, muscle soreness, and post-workout recovery.
Travel & Jet Lag
Pre-flight and post-flight sessions to buffer the oxidative and immune load of long travel days.
Skin, Collagen & Glow
Vitamin C is a key cofactor in collagen synthesis — many guests notice brighter, more radiant skin after regular sessions.
Burnout & Stress Reset
When packed weeks catch up to you, High-C helps clear the oxidative load faster than any oral supplement can.
Wellness & Longevity Stacks
Layer High-C with NAD+, Niagen, glutathione, or custom IV drips for full-spectrum cellular and antioxidant support.

Stack It With Your Routine
Most guests build High-C IV into a longer wellness rhythm. Here's how St Johns regulars sequence it:
Start With A Baseline Dose
A 45–60 minute 25,000 mg infusion — great for immune support, travel prep, and post-workout recovery.
Deeper Antioxidant Reset
A 60–90 minute 50,000 mg infusion with extra hydration for serious antioxidant load, recovery, or wellness resets.
Weekly Or Monthly Cadence
Weekly during peak season for immune-focused guests. Bi-weekly or monthly for recovery, wellness, and longevity stacks.
Is High-C IV Right for You?
High-C IV is for almost everyone — here's how to tell if it's a fit for you.
This IS for you if…
- You want immune, antioxidant, and recovery support that oral vitamin C can't touch
- You're training hard, traveling, or running on packed schedules
- You want brighter skin and collagen support from the inside out
- You're an athlete, founder, or high-output professional chasing recovery
- You want pharmaceutical-grade vitamin C administered by a licensed RN
- You're open to combining High-C with other IV therapies for a full stack
This is NOT for you if…
- You have a serious kidney condition or history of oxalate kidney stones without provider clearance
- You're pregnant or nursing without provider clearance
- You expect one session to fix a chronic condition — High-C is support, not a cure
- You're under 18 without parental consent
- You aren't comfortable with an IV drip
What to Expect
Your first High-C IV visit, start to finish — about 60–90 minutes total.
Before Your Visit
Eat a full meal and hydrate well before your session. Wear comfortable clothes with easy arm access. Bring a laptop, book, or headphones for the session.
RN Consult & Dose Match
Our nurse reviews your goals and confirms the right High-C dose for you.
Comfort-First Infusion
Settle into a private recliner. Most guests work, read, or relax through the 45–90 minute session as the pharmaceutical-grade ascorbic acid infuses with extra hydration.
Feel The Lift
Many guests feel sharper, more resilient, and better hydrated within the first few sessions. Your RN will help you dial in ongoing cadence.

Real People, Real Results
Hear from St Johns guests who made High-C IV part of their weekly routine.
"Bounces me back fast every time. The team makes it easy and the lounge is beautiful."
"Monthly High-C has become non-negotiable. Cleaner energy, better recovery, sharper focus."
"Skin is brighter and I feel more resilient. Best add-on I've made to my wellness routine."
More St Johns Guest Reviews
What our clients say
"I book a High-Dose Vitamin C IV anytime I feel something coming on — bounces me back fast every time."
Rachel P.
"Energy and recovery have been noticeably better since adding monthly Vitamin C IVs to my routine."
David K.
"Skin looks brighter and I feel sharper. The RN team is incredible and the lounge is so relaxing."
Monica S.
Here's Everything You Get for Free
A no-obligation in-person consultation with our licensed medical team — plus a personalized High-C IV dosing recommendation.
New guests only · No commitment · No pressure — walk away anytime · Physician fee may apply
Want more? Upgrade to a Day Pass
Choose any 3 of the 4 lifestyle services below to stack your recovery in one session.
Memberships available — ask your specialist about monthly recovery plans.
Schedule Your Free In-Person High-C IV Consultation
Drop your info — our medical team will walk you through dosing, scheduling, and how High-C IV fits into your wellness plan. No obligation.
Inside The St Johns High-C IV Lounge
Pharmaceutical-grade ascorbic acid. Licensed RNs. Personalized dosing for immune, antioxidant, and recovery support.
Frequently Asked Questions
Everything you need to know about High-Dose Vitamin C IV
Visit Us at iCRYO St Johns
Step into High-C IV at our St Johns studio — walk in, recharge, walk out energized.
iCRYO St Johns
Located in Durbin Pavilion
120 Durbin Pavilion Dr Suite 103, St Johns, FL 32259
Get DirectionsHours
Mon – Thu: 8 AM – 8 PM
Friday: 8 AM – 7 PM
Saturday: 9 AM – 5 PM
Sunday: 10 AM – 5 PM
Contact
Tap to call (904) 513-8877
Start Your High-C Protocol With A Free Consultation
Immune defense, antioxidant support, and recovery you can feel — delivered at 100% bioavailability by a licensed RN. Sit down with our medical team and map your plan.
Pair It For Even Better Results
Guests who pair High-C IV with these services see faster recovery and longer-lasting results.

IV Infusion Therapy
Custom hydration, vitamin, and antioxidant drips — pair with High-C for a full-spectrum stack.
Learn more →
NAD+ Therapy
Direct NAD+ IV protocols for cellular energy, mental clarity, and longevity.
Learn more →
Niagen (NAD+ Precursor)
A cleaner-tolerated 45-minute NAD+ precursor IV — stacks beautifully with High-C.
Learn more →