The Foundation of Every IV Drip
Every IV drip starts with a base fluid. Before any vitamin, mineral, or medication is added, there is a clear bag of fluid that delivers everything to your bloodstream. The two most common base fluids in wellness IV therapy are normal saline and Lactated Ringers. They are the foundation of how IV therapy works, and most people have never thought about them.
If you have ever wondered exactly what is in that IV bag, this page is for you. Both fluids are sterile, balanced solutions designed to safely match the chemistry of your bloodstream. Each has slightly different properties, and we use them in different situations based on what your body needs.
What Is Normal Saline?
Sterile water+
Sodium chloride (table salt) at 0.9 percent+
Trace amounts of stabilizers+
That is it. No other electrolytes. No vitamins. No additives. It is one of the simplest and most studied fluids in modern medicine, used in hospitals worldwide for over a century.
What Are Lactated Ringers?
Sterile water+
Sodium chloride+
Sodium lactate+
Potassium chloride+
Calcium chloride+
The lactate component is what gives the solution its name. Lactate is metabolized by the liver into bicarbonate, which helps maintain healthy blood pH. This makes Lactated Ringers slightly buffering, while normal saline is acidic compared to blood. Lactated Ringers is often preferred for situations involving significant fluid replacement or recovery, including:
Severe dehydration+
Post-surgical recovery+
Burn recovery+
Sports recovery+
Trauma situations+
Normal Saline vs Lactated Ringers: Which Is Better?
Neither is universally better. The right choice depends on your specific situation. Here is a quick comparison:
| Property | Normal Saline | Lactated Ringers |
|---|---|---|
| Sodium content | 154 mEq/L | 130 mEq/L |
| Chloride content | 154 mEq/L | 109 mEq/L |
| Potassium | None | 4 mEq/L |
| Calcium | None | 3 mEq/L |
| Lactate (buffer) | None | 28 mEq/L |
| pH (approximate) | 5.5 (acidic) | 6.5 (closer to blood) |
| Best for | General hydration, simple replacement | Significant replacement, recovery, trauma |
For most wellness IV therapy purposes, both work well. Normal saline is more commonly used for general wellness drips. Lactated Ringers is sometimes preferred when significant fluid replacement is needed, like severe dehydration or recovery situations.
How IV Fluids Work in Your Body
What IV Fluids Help With
Dehydration Recovery+
The most direct use. After heavy alcohol, illness, intense exercise, or hot weather, IV fluids restore hydration faster than drinking water. Most clients feel relief within 20 to 30 minutes.
Hangover Recovery+
Alcohol is a diuretic that pulls fluid from your body. The dehydration is responsible for many hangover symptoms. IV fluids reverse this dehydration directly.
Heat Exhaustion Recovery+
Heavy sweating loses fluid and electrolytes. IV fluids replace what was lost faster than oral options can.
Stomach Flu Recovery+
Vomiting and diarrhea cause significant fluid loss. Once you are no longer in active medical crisis but still depleted, IV fluids speed your recovery.
Post-Workout Recovery+
Hard training drains fluids. IV fluids support faster recovery between sessions.
Travel Recovery+
Long flights are dehydrating due to dry cabin air. IV fluids support recovery from travel-related dehydration.
Pre-Event Hydration+
Many clients book hydration IVs before weddings, photo shoots, presentations, and other events to start at peak.
Foundation for All Other Drip Ingredients+
Whatever else is in your drip (vitamins, minerals, medications), the IV fluid is what carries it into your bloodstream. The hydration alone provides benefits beyond what the additives do.
What IV Fluids Cannot Do
Where You Find IV Fluids at Zen IV Spa
Every Zen IV Spa drip uses normal saline or Lactated Ringers as the base fluid. Our medical provider determines the appropriate fluid for your specific drip during intake.
Hydration IV
$229
Simple hydration when you need it most. Great for summer heat, hot yoga, long days on your feet, or anyone new to IV therapy, with one full liter of fluids and replenishing electrolytes to help restore hydration fast.
Myers Cocktail IV
$299
Our most popular drip. Perfect for first-time IV clients, busy professionals, or anyone feeling run down, combining IV hydration with a full spectrum of nutrients to support energy, immune support, and overall wellness.
Mega Myers IV
$399
Our best-selling drip, everything clients love about the Myers taken to the max. Built for clients who want stronger recovery and higher nutrient doses, with every nutrient at maximum strength to support energy, immune support, recovery, and overall wellness.
Hangover IV
$299
Overdid it last night? Built for the morning after weddings, bachelor parties, and big nights out, pairing a full liter of fluids with provider-approved medicine that may help settle headache, nausea, and heartburn.
Migraine IV
$349
Targeted migraine relief, delivered where you are. For clients with a known, familiar migraine pattern, delivering provider-approved medicine straight into the bloodstream, where it absorbs faster than pills.
Weight Loss IV
$349
Support for the work you are already doing. Made for clients following a diet and exercise plan, built around NAD+ to support metabolism, cellular energy, and recovery between workouts.
Kids Mini Myers
$229
A gentler Myers, sized for kids. For ages 12+ and 100lbs+ with a parent present, a half-liter blend to support hydration during stomach bugs, sports dehydration, and run-down days.(Ages 12+, 100 lbs)
Nausea & Stomach Relief IV
$299
When nothing stays down. Built for stomach bugs and food poisoning, combining a full liter of fluids with provider-approved anti-nausea and anti-acid medicine to help you rehydrate and settle your stomach.
Jet Lag IV
$299
Land ready, not wrecked. Made for red-eyes, long-haul flights, and back-to-back travel, pairing a full liter of fluids with energizing support to help you bounce back from jet lag and cabin air.
Immune Boost IV
$349
Feel something coming on? Great for cold and flu season, before travel, or when you are run down, delivering high-dose immune and antioxidant support when you need it most.
Athletic Recovery IV
$349
Sore after a hard workout? Made for athletes and anyone recovering from hard training, formulated to support muscle repair, rehydration, and getting back to training sooner.
Glow Up IV
$349
Glow that starts under the skin. Perfect before weddings, photoshoots, vacations, and big events, featuring our max-dose beauty blend to support healthy skin, hair, and nails.
Brain Fog & Focus NAD+ IV
$499 or $699
Clear the fog, keep the focus. Built for executives, founders, students, and biohackers, built around NAD+ to support mental clarity and cellular energy, with no coffee crash.
Ultimate IV
$649
Up to two liters. Every add-on maxed out. Made for a full reset after a hard week, illness, or travel, delivering every add-on at maximum strength with provider-approved medicine, our most complete drip without NAD+.
Black Card VIP
$999
Our most exclusive IV experience. Built for clients who want our highest level of hydration, recovery, cellular energy, and performance.
NAD+ IV
$399 / $599 / $999
NAD+ delivered straight into your bloodstream to support cellular energy, mental clarity, and healthy aging. Three doses to choose from, each with a full liter of fluids, titrated to your comfort by your nurse.
Custom IV
$249
Build your own drip. Includes 1L LR or Normal Saline plus any 2 standard add-ons. Premium and high-dose add-ons are available for an additional charge. Tailored to your wellness goals.
Morning Sickness & Pregnancy Nausea Relief
$349
Morning sickness making the day harder? Made for expecting mothers with morning sickness or ongoing pregnancy nausea, pairing a full liter of Lactated Ringer's with provider-approved anti-nausea medicine when clinically indicated.
Hyperemesis Gravidarum Relief
$399
Our strongest pregnancy protocol. For expecting mothers managing severe, persistent vomiting and dehydration, combining high-dose replenishment with a provider-approved medication protocol for hyperemesis gravidarum.
All Inclusive IV
$399 or $499
Every standard add-on we offer, in one full liter. For clients who want it all without choosing, including all nine nutrients in a single bag at standard dose, or every one at maximum strength for just $100 more. Our second most complete drip without NAD+, after the Ultimate.
Are IV Fluids Safe?
Mild swelling at the IV site+
Cold sensation in the arm during infusion+
Rare allergic reactions to the IV equipment (latex, adhesive)+
IV fluids may not be appropriate in some conditions. Tell our medical provider during intake about:
Heart failure or significant heart conditions (excessive fluid can stress the heart)+
Severe kidney disease (kidneys may not handle additional fluid)+
Severe high blood pressure that is uncontrolled+
Lactated Ringers should not be used with certain blood transfusions or specific medications+
Any history of fluid retention issues+
For healthy adults, IV fluids are remarkably safe.
Frequently Asked Questions
Why is the IV fluid called normal saline?+
"Normal" refers to the salt concentration matching the salt content of your blood (0.9 percent). It does not mean it is the most common or default choice; it means it is isotonic with blood.
Will I feel cold when the IV fluid runs?+
Some clients feel a cool or cold sensation in the arm where the IV is. This is because the fluid is at room temperature, which is cooler than your body. Some clients prefer warmed fluids; tell your nurse if you would like the bag warmed before infusion.
How fast does the fluid go in?+
Most wellness drips run over 30 to 45 minutes for a full liter. The NAD+ IV runs slower, typically 60 to 90 minutes. Your nurse can adjust the rate based on your comfort.
How much fluid is in a typical IV?+
Most of our drips are 1 liter (roughly 33 ounces, or about 4 cups of water). This is far more than you could drink during the same time period.
Will an IV fix my dehydration?+
If you are mildly to moderately dehydrated, yes. Severe dehydration may need more than one liter or medical evaluation. Most cases of typical dehydration respond well to a single IV.
Can I drink water during or after the drip?+
Yes, both. Drinking water alongside the drip is fine. After the drip, continue drinking water to maintain hydration.
Is IV fluid better than drinking water?+
For acute hydration needs (hangover, illness recovery, post-exercise), IV is faster and more effective. For daily hydration maintenance, water is fine and more affordable.
Will the IV make me need to urinate a lot?+
Yes, you will likely need to urinate more in the hours after a drip as your kidneys filter and process the fluid. This is normal.
Why do you use saline instead of just water?+
Pure water cannot be safely given by IV because it would cause cells to swell and burst. The salt content of normal saline matches your blood's natural chemistry.
Are normal saline and Lactated Ringers safe during pregnancy?+
Both are commonly used during pregnancy in clinical settings, including hospital labor and delivery. We require OB/GYN clearance for any pregnant client.
Can I get an IV if I have heart problems?+
Heart conditions require medical clearance. Excessive fluid can stress the heart in some conditions. Tell our medical provider during intake about any heart history.
Is one liter the right amount for me?+
For most healthy adults, one liter is appropriate. People with very low body weight, certain medical conditions, or specific situations may benefit from less. Our medical provider can adjust during intake if needed.
How long does the hydration last?+
Direct hydration effects last 6 to 24 hours, depending on activity level and other factors. The benefits to skin, energy, and recovery often last longer.
Can I get just IV fluids without any vitamins or medication?+
Our Hydration IV is the simplest option, with just IV fluids plus light electrolyte support (Magnesium and B Complex). It is the most affordable option for clients who mainly want hydration.
Are the nurses experienced with IV insertion?+
Yes. Every Zen IV Spa nurse is a licensed registered nurse (RN) with extensive IV experience. All treatments are also overseen by our medical director.
Book IV Hydration Therapy in NYC Today
Whether you need recovery from dehydration, support during illness, or a hydration boost before an event, IV fluid therapy delivers what your body needs faster than drinking water can. Delivered to your door by a licensed registered nurse anywhere in the NYC area.
Call or text: 332-239-2005 Hours: 8 AM to 8 PM, 7 days a week