Keen Testosterone Spray Rx (Men's)

Your spray,
explained.

How much to use, what's in it, how to use the spray, looking after the bottle, and when to call the doctor.

How much to use

The single most common error is applying half a dose without realising it. This section exists to make that impossible.

My bottle says 10 mg. Is that my daily dose?

No — and this is the one thing worth reading twice. On your Testosterone Spray Rx the tier name is the amount in one spray. Your dose is two sprays, so your daily total is double the number on the bottle.

10 mg tier2 sprays daily = 20 mg per day
15 mg tier2 sprays daily = 30 mg per day
20 mg tier2 sprays daily = 40 mg per day
25 mg tier2 sprays daily = 50 mg per day

Neither the tier name nor the milligram figure on the label is a spray count — the label does not print one. Your dose is two sprays unless your provider tells you otherwise. If you are not sure which row is yours, message your care team before you start rather than guessing.

Why two sprays instead of one bigger one?

Because the pump is metered — it delivers the same measured 0.20 mL every time it is pressed. Your prescription is built from two of those measured amounts.

Both sprays together are one dose. Apply them one after the other at the same site. Applying only one spray gives you half your prescribed dose.

What if I miss a day?

This spray is applied every day, so a skipped day is a day with no dose at all. It is not something to make up for on your own.

Do not change your dose to compensate. Tell your care team how many days you missed and follow the direction they give you.

When should I use it?

Morning is recommended. Whichever time you choose, keep it the same every day — consistency matters more than the specific hour.

What’s in it

What’s actually in the spray?

Testosterone, Micronized USP. That is the only active ingredient in the spray.

Every Keen spray is formulated with the pure active pharmaceutical ingredient — one molecule per spray, unless the product is explicitly a combination. Your Testosterone Spray Rx is a single-molecule preparation, delivered by the Hypospray® transdermal platform.

Is this the same testosterone as a shot?

It is the testosterone molecule itself. Injectable testosterone is usually supplied as an ester — testosterone cypionate or enanthate — which is testosterone with a chemical group attached that the body separates after the injection.

Your spray contains micronized testosterone USP with no ester attached. That is a difference in what is in the container, not a statement about how either one performs. Your provider decides what is appropriate for you.

Compounded preparations are not interchangeable with FDA-approved testosterone products. Any injectable dose reference your provider used was for selecting your tier, not a claim that the two are equivalent.

How to use it

How do I use the spray?

Your daily routine

  1. Clean and dry the skin

    Wash the area with water and pat it dry. Apply only to healthy, unbroken skin — no cuts, rashes, or irritation.

  2. Hold the bottle one to two inches away

    Measure it the first few times until the distance is familiar.

  3. Apply both sprays as one dose

    One after the other, at the same site.

  4. Rub it in for two to three seconds

    Rub gently until it is absorbed. Do not skip this step.

  5. Let it dry for two to five minutes

    Wait before putting clothing over the area.

  6. Same time every day

    Morning is recommended. Pick a time you can keep.

Where do I spray it?

Approved sites

Inner forearm — the main site
Wrist
Shoulder
Chest
Thigh

You do not need to alternate sides or rotate between sites. Use whichever listed site is easiest for you to reach and to keep uncovered while it dries.

How long before I can get dressed?

Give it two to five minutes to dry before clothing covers the area. Let it air-dry — do not fan it, wipe it, or towel it off.

Dressing before it dries is one of the four things that quietly reduce how much of your dose actually reaches you. The others are applying one spray instead of two, skipping days, and not rubbing it in.

When can I shower, swim, or work out?

Wait one hour after applying before showering, swimming, or heavy sweating.

Applying in the morning, before you dress, makes this straightforward for most people. If your routine makes it difficult, raise it with your care team rather than shortening the wait.

The bottle and sprayer

I just got my first bottle. What do I do first?

Yes — once per bottle, when you first open it.

Priming a new bottle

  1. Open the bottle

  2. Pump twice

    These first two pumps prime the mechanism.

  3. On the third pump it is primed

    From here it delivers a full metered dose.

Priming is a one-time step for each new bottle. You do not repeat it daily.

It’s squirting instead of misting. Is it broken?

Your dose is unaffected. This is a metered pump: it dispenses the same measured amount whether the pattern is a fine mist or a stream. Only the spray pattern has changed. Do not re-dose, and do not skip a dose, because of how it looks.

It happens when air reaches the nozzle quickly after use and a little solution dries in the tip.

Clearing the nozzle

Clean the nozzle tip with a warm, damp cotton swab.
If that does not clear it, run hot water over the back of the sprayer head for about 60 seconds, then pump.

If it still will not clear after both steps, message your care team rather than continuing with a bottle you are unsure about.

Where should I keep it?
TemperatureRoom temperature, 68–77°F (20–25°C). No refrigeration.
LightKeep out of direct sunlight.
CapKeep tightly capped, stored upright.
HandlingExternal use only. Dispose of the bottle properly.
Can I fly with it?

Yes — but it must travel in your carry-on. Never put it in checked baggage.

The reason is mechanical rather than administrative: pressure changes in the hold can damage the pump mechanism, and a damaged pump no longer delivers a measured dose.

Keep it in its original labelled bottle. For questions about travelling with a prescription — particularly internationally — message your care team before you travel.

How long does one bottle last?
Bottle volume14 mL
Each spray0.20 mL
Your dose2 sprays, once daily
Filled to last35 days on this schedule

Your bottle is filled to outlast your refill cycle, so a shipment arriving while you still have some left is expected rather than a mistake.

What to expect

How will I know it’s working?

Your follow-up blood test is the measure. Your provider re-checks your levels and reads them alongside how you have been doing — that is the conversation this is built around, and it is why the lab work is part of the membership rather than an extra.

What helps you get a clean read

Apply the right number of sprays every dosing day.
Keep the same time of day.
Rub it in and let it dry fully.
Give it several consistent weeks before drawing conclusions.

If it is not going the way you expected after several consistent weeks, that is worth raising rather than sitting with. Do not change your dose on your own — tell your provider what you are noticing and let them adjust it.

Everyone responds differently, and your provider is the person who can say what your own numbers mean. Nothing here predicts a result for you.

Safety

Can it rub off on someone else?

Yes — before it dries. This spray is absorbed through the skin, and anything that touches the treated area before it has dried can pick up medicine that was meant for you.

Until it has dried

Keep children, partners, and pets from skin contact with the site.
Wash your hands thoroughly after applying.
Let it dry the full two to five minutes before covering the area.

Once it has dried and you have washed your hands, ordinary contact is not a concern.

When should I call the doctor?

Message your care team if

You are unsure how many sprays your dose requires.
You have missed several days.
The skin where you apply it becomes irritated.
You are not seeing the response you expect after several consistent weeks.

Anything about your dose, your labs, your symptoms, or whether the therapy suits you goes to your provider through the member portal — that is the only channel that should carry clinical detail.

If you are having a medical emergency, call 911. Do not use the portal for anything urgent.

Compounded preparation dispensed under a licensed prescriber and pharmacy. Not an FDA-approved drug product and not interchangeable with FDA-approved testosterone products. Injectable dose references are provided for tier selection only and are not a claim of equivalence. All dosing decisions are made by the prescribing provider.

For membership, labs, billing and how to reach your care team, see the general questions.

All frequently asked questions →

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