Body Pharm Somatropin 100 Pen (HGH)

Body Pharm Somatropin 100 Pen (HGH): Full Guide 2026

The Body Pharm Somatropin 100 Pen is a pre-mixed 100 IU recombinant human growth hormone (HGH) device sold in South Africa primarily through online resellers like Beskinny.store. At a typical adult dose of 2 IU/day, a single pen lasts 50 days because 100 IU ÷ 2 IU/day = 50 days of supply. Somatropin is a Schedule 4 prescription-only medicine in South Africa under the Medicines and Related Substances Act [2], and the Body Pharm brand does not appear on the SAHPRA registered medicines database as of 2026 [1].

Key Takeaways

• One 100 IU pen lasts 50 days at 2 IU/day, 25 days at 4 IU/day, and 12.5 days at 8 IU/day
• The 100 IU pen costs roughly 22% less per IU than the 40 IU pen at current 2026 pricing
• Body Pharm is not registered with SAHPRA; any use requires a prescriber’s oversight
• Somatropin is approved only for growth hormone deficiency, short bowel syndrome, and HIV-associated wasting; off-label use carries real risks
• Refrigerate at 2–8°C between injections; no validated room-temperature window exists for this brand
• Baseline IGF-1, fasting glucose, and HbA1c bloods are essential before starting

Quick-reference: how long one 100 IU pen lasts

Daily dose	Days per pen	Pens per 12-week cycle
2 IU	50 days	~2 pens
4 IU	25 days	~4 pens
6 IU	~16 days	~5–6 pens

Off-label HGH use carries real risks. Consult a prescriber before starting.

What Is the Body Pharm Somatropin 100 Pen?

The Body Pharm Somatropin 100 Pen is a pre-filled, pre-mixed disposable injector containing 100 IU (≈33.3 mg) of recombinant human growth hormone in liquid form. The dose dial typically allows 1–8 IU per injection, and pen needles are supplied in the box [4][6].

“Pre-mixed” means the solution is already reconstituted at the factory. You skip the bacteriostatic water, mixing vial, and insulin-syringe workflow that traditional HGH kits require. That cuts preparation time and reduces injection errors compared to powder-and-water formats.

Somatropin is a recombinant DNA-derived version of the 191-amino-acid human growth hormone secreted by the pituitary [3]. The Body Pharm brand does not appear on the SAHPRA registered human medicines database as of 2026 [1], placing it outside the legally registered somatropin products in South Africa.

Key specs at a glance

Attribute	Detail
Active compound	Somatropin (recombinant HGH) [3]
Total capacity	100 IU pre-mixed solution
Dose dial range	1–8 IU per injection (typical) [6]
Format	Disposable pre-filled pen, no reconstitution
Needles	Pen needles included; quantity varies by vendor [4]
Indicative ZAR price (2026)	~R4,200 on Beskinny.store [4] (unverified, confirm at checkout)
SAHPRA registration	Not listed on SAHPRA register as of 2026 [1]

For a smaller commitment on a first run or travel supply, the Body Pharm Somatropin 40 Pen (HGH) holds 40 IU in the same pre-mixed format, reducing financial exposure during a trial phase. Users who prefer the lyophilised powder workflow can compare the Body Pharm Somatropin 100 (HGH 100iu kit), which ships as vials plus bacteriostatic water and requires reconstitution before each cycle, offering longer shelf life before first use.

Somatropin 100 IU Pen: Dose-Duration Calculator

A single Body Pharm Somatropin 100 IU pen lasts between 12 and 50 days depending on your daily dose, calculated as 100 IU ÷ daily IU = days of supply. At an indicative R4,200 per pen on Beskinny.store [4], that translates into the monthly cost figures below (30-day month assumption).

How long does one pen last?

Daily Dose	Days One 100 IU Pen Lasts	Pens Needed Per 30 Days	Approx. Monthly Cost at R4,200/pen
2 IU/day	50 days	0.6	~R2,520
4 IU/day	25 days	1.2	~R5,040
6 IU/day	16.7 days	1.8	~R7,560
8 IU/day	12.5 days	2.4	~R10,080

These figures are arithmetic projections only. They assume zero wastage and that the dose dial delivers exactly the indicated IU. Real-world consumption usually runs slightly higher because each new pen typically requires a 1–2 IU prime shot to clear the cartridge of air, reducing net usable hormone by 1–2%.

What the numbers don’t tell you

Dose selection is a clinical decision, not a budgeting exercise. Adult somatropin replacement for diagnosed GHD usually starts at far lower doses — often 0.2–0.4 IU/day titrated to IGF-1 response — than the 4–8 IU/day ranges discussed in performance contexts. Higher doses carry proportionally greater risk of insulin resistance and joint pain. A prescribing clinician must set any dose based on baseline IGF-1 bloods. Somatropin is a Schedule 4 (S4) prescription-only medicine in South Africa [9].

For an initial trial, the Body Pharm Somatropin 40 Pen (HGH) gives you a 20-day runway at 2 IU/day in the same pre-mixed format if a 50-day supply still feels like over-commitment. Users comfortable with reconstitution who want flexibility on concentration can compare against the Body Pharm Somatropin 100 (HGH 100iu kit) vial-and-water format instead.

40 IU Pen vs 100 IU Pen: Which Should You Choose?

The 100 IU pen offers better value for anyone running an established protocol because the per-IU cost is lower. The 40 IU pen makes more sense for first-time users testing tolerance or those on conservative 1–2 IU/day doses because it limits financial exposure. The price-per-IU gap is roughly 22% in favour of the 100 IU device at current 2026 Beskinny.store pricing.

Attribute	40 IU Pen	100 IU Pen
Total IU per pen	40 IU	100 IU
Price (ZAR, 2026)	~R2,150 (indicative, confirm at vendor) [2][6]	R4,200 [2]
Price per IU	~R53.75/IU	R42.00/IU
Days at 2 IU/day	20 days	50 days
Days at 4 IU/day	10 days	25 days
Format	Pre-mixed disposable pen	Pre-mixed disposable pen
Best for	First-time trial, low-dose protocols, shorter cycles	Established users, 4+ IU/day protocols, 30-day+ continuity

The 40 IU price above is drawn from cached reseller snapshots and the Beskinny.store listing, both of which fluctuate with stock and exchange rate. Treat it as indicative and confirm the live price before ordering [2][6].

Practical recommendation

For your first run on the Body Pharm device, the Body Pharm Somatropin 40 Pen (HGH) limits financial exposure while you confirm injection technique, tolerance, and IGF-1 response on a clinician-set dose. Once a stable protocol is in place at 4 IU/day or higher, the 100 IU pen saves roughly R11.75 per IU and reduces reordering frequency. Users who want even lower per-IU cost and don’t mind the extra handling step can compare against the Body Pharm Somatropin 100 (HGH 100iu kit) vial-and-bacteriostatic-water format, which trades pen convenience for reconstitution flexibility and longer pre-use shelf life.

How to Use the Body Pharm Somatropin 100 Pen

Administering the Body Pharm Somatropin 100 pen follows a standard subcutaneous pen-injection sequence: prime, dial, inject at 45–90°, dispose. The pen dispenses in 1–8 IU increments per shot according to the Beskinny.store product listing [2], covering the common adult off-label range of 2–6 IU/day without needing split injections.

These steps are general technique guidance. Your prescribing clinician’s instructions and the leaflet inside the actual carton take precedence over anything below.

Step	Action
1	Wash hands with soap and warm water; dry thoroughly.
2	Remove the pen cap, wipe the rubber seal with alcohol, and screw on a fresh pen needle. Most HGH pens in SA accept standard insulin pen needles, but confirm compatibility with the vendor before buying third-party needles [8].
3	Prime the pen: dial to 2 IU, hold the pen needle-up, and depress the plunger until a droplet appears at the tip. Return the dial to zero.
4	Dial your prescribed dose (1–8 IU per injection) [2]. Double-check the number in the dose window before proceeding.
5	Choose an injection site: abdomen (avoiding a 2 cm radius around the navel), outer thigh, or upper arm. Rotate sites between injections to reduce the risk of lipohypertrophy, which is standard pen-injection practice.
6	Wipe the site with an alcohol swab and let it dry. Pinch a fold of skin, insert the needle at 45–90° depending on needle length and subcutaneous depth.
7	Depress the plunger fully until the dose counter returns to zero, then hold the needle in place for 5 seconds to ensure the full dose delivers.
8	Withdraw the needle, apply gentle pressure with a clean swab (do not rub), unscrew the needle, and drop it into a sharps container.
9	Replace the pen cap. Store per the carton instructions. In the absence of validated room-temperature stability data for Body Pharm specifically, refrigeration at 2–8°C between doses is the conservative default [unverified].

Timing and rotation notes

Most users inject once daily in the evening before bed, which aligns with the body’s natural nocturnal GH pulse, or in the morning on an empty stomach if training fasted. The subcutaneous terminal half-life of somatropin is roughly 2 hours in adults per the Norditropin and Genotropin labels [1][3], so injection timing shifts the IGF-1 curve but does not extend exposure meaningfully.

Rotate between at least three sites across the week. Injecting into the same square centimetre repeatedly causes lumpy, fibrotic tissue that absorbs erratically and increases the risk of lipohypertrophy.

Storage Instructions for a Pre-Mixed HGH Pen

Refrigerate the Body Pharm Somatropin 100 IU pen at 2–8°C from purchase until the final dose, and keep it out of direct light. There is no publicly available manufacturer data sheet specifying a validated in-use room-temperature window for this brand [2][unverified], so the conservative default is to return the pen to the fridge between injections.

For context, Norditropin FlexPro permits up to 21 days at ≤25°C after first use per the 2025 SA package insert [1], and other branded somatropin pens cite figures up to 28 days. These windows are formulation-specific and should not be assumed to apply to Body Pharm. Confirm with the carton leaflet shipped with your pen, or with your prescribing clinician, before leaving the pen out.

Storage condition	Guidance
Unopened pen	2–8°C, original carton, do not freeze
In-use pen	2–8°C between doses (conservative default) [unverified]
Light exposure	Keep in carton, away from direct sunlight
Handling	Do not shake; roll gently if mixing is needed
Discard if	Solution is cloudy, discoloured, or contains visible particles
Travel	Insulated cooler with ice pack; never place directly on ice

A frozen pen is a dead pen. Somatropin is a 191-amino-acid protein and freezing denatures it irreversibly. A pen left in the coldest zone of a fridge (often the back wall) or in a car boot overnight in a Highveld winter is no longer usable regardless of how the liquid looks on thawing.

For buyers without reliable refrigeration, the Body Pharm Somatropin 100 (HGH 100iu kit) vial version has a longer shelf life as a dry powder before reconstitution. The pre-mixed pen trades that flexibility for convenience.

Clinically Recognised Benefits of Somatropin

Somatropin has four evidence-backed clinical uses: paediatric growth hormone deficiency (GHD), adult GHD, short bowel syndrome, and HIV-associated wasting. These are the indications recognised on current prescribing information for SAHPRA- and FDA-registered somatropin products [1]. The Body Pharm brand is not on the SAHPRA register as of 2026 [3][unverified], so any use of the Body Pharm pen falls outside these approved channels and requires a prescribing clinician’s oversight.

Indication	What the evidence shows	Source
Paediatric GHD	Daily somatropin stimulates linear growth and increases adult height in children with confirmed deficiency	Norditropin SA insert, 2025 [1]
Adult GHD	Increases lean body mass, reduces fat mass, improves body composition in deficient adults	Endocrine reviews 2020–2023 [7]
Bone density	Reduces fracture risk and improves bone mineral density in long-term GH-replaced adult GHD cohorts	Liu et al., 2014 [6]
Short bowel syndrome	Improves intestinal absorption in adults dependent on parenteral nutrition	Genotropin PI, 2024 [8]
HIV-associated wasting	Increases lean mass and physical function in patients with documented wasting	Genotropin PI, 2024 [8]

Off-label use, including anti-ageing

SAHPRA, the FDA, and EMA do not approve somatropin for anti-ageing, cosmetic, athletic enhancement, or general “wellness” use as of 2026 [unverified]. Published evidence for these applications in healthy adults with normal GH/IGF-1 axes is limited and does not meet the threshold for an approved indication in any major regulatory jurisdiction. South African Schedule 4 status means any use, on-label or off-label, is prescription-only [4].

Adults considering the Body Pharm pen for body-composition reasons should treat it as off-label therapy. Obtain baseline IGF-1, fasting glucose, and HbA1c bloods. Work with a doctor who will monitor those markers. The body-composition benefits documented in GHD patients do not automatically translate to non-deficient adults. The Body Pharm Somatropin 40 Pen (HGH) is the lower-volume option for shorter trial cycles, while the 100 IU vial kit suits users who prefer reconstitution control over pen convenience.

Somatropin Dosage: What the Evidence Says in 2026

Disclaimer: The figures below are published clinical reference ranges used by prescribers, not recommendations. Somatropin is a Schedule 4 prescription-only medicine in South Africa [4], and a registered healthcare provider must set and titrate individual dosing based on baseline IGF-1, weight, age, sex, and treatment response.

Published reference ranges for somatropin in 2025–2026 sit at 0.025–0.035 mg/kg/day subcutaneously for paediatric growth hormone deficiency, and 0.2–0.5 mg/day titrated upward for adult GHD, per current prescribing information for SAHPRA-registered pens such as Norditropin FlexPro [1] and Genotropin [8]. Adult starting doses at the lower end (0.2 mg/day) are typical because they minimise side effects while allowing the clinician to observe IGF-1 response. Upward titration is guided by IGF-1 levels and tolerability.

IU-to-mg conversion for the Body Pharm 100 pen

The Body Pharm pen is graded in IU, while clinical literature and prescribing information are usually expressed in mg. The standard pharmacological conversion is 1 mg somatropin ≈ 3 IU [1][8]. Applying that conversion to the published ranges:

Population	Reference range (mg)	Approx. IU equivalent	Source
Paediatric GHD	0.025–0.035 mg/kg/day	~0.075–0.105 IU/kg/day	Norditropin PI, 2025 [1]
Adult GHD (starting)	0.2 mg/day	~0.6 IU/day	Genotropin PI, 2024 [8]
Adult GHD (titrated)	up to 0.5 mg/day	~1.5 IU/day	Genotropin PI, 2024 [8]
Adult off-label (body composition)	Not approved	Commonly cited 1–2 IU/day in literature [unverified]	—

Note the gap between the approved adult GHD ceiling (~1.5 IU/day) and the 2, 4, or 6 IU/day doses often discussed in off-label body-composition contexts. Higher doses carry proportionally higher risk of insulin resistance, oedema, and arthralgia. This is why prescribers titrate from the bottom up.

For format choice during a prescribed protocol, the Body Pharm Somatropin 40 Pen (HGH) suits lower-dose or shorter trial cycles, and the 100 IU vial kit offers reconstitution control for users whose prescriber wants fixed reconstituted concentrations rather than a pre-mixed cartridge.

Potential Side Effects of Somatropin

Somatropin side effects fall into three tiers: common and mild (injection site reactions, mild fluid retention), less common and dose-dependent (joint pain, carpal tunnel syndrome, headache), and rare but serious (raised intracranial pressure, glucose intolerance, tumour growth stimulation in active malignancy). Risk scales with dose, which is why prescribed protocols start low and titrate against IGF-1 [3][8].

Frequency	Effect	What to do
Common	Injection site redness, swelling, bruising	Rotate sites (abdomen, thigh); cold compress if needed [3]
Common	Mild fluid retention, peripheral oedema	Reduce dose; report if persistent beyond 1–2 weeks [3]
Less common	Arthralgia, myalgia, headache	Dose reduction; reassess IGF-1 [3]
Less common	Carpal tunnel syndrome (more frequent at higher doses)	Stop or reduce; medical review [3]
Less common	Glucose intolerance, new-onset insulin resistance	Baseline and periodic fasting glucose/HbA1c [3][8]
Rare/serious	Benign intracranial hypertension	Urgent ophthalmology and discontinuation [3]
Contraindicated	Active malignancy, proliferative diabetic retinopathy	Do not use [3][8]

Somatropin is contraindicated in patients with active malignancy [3]. Off-label doses in the 2–6 IU/day range discussed in body-composition contexts sit well above the adult GHD ceiling of ~1.5 IU/day [8], so the side-effect probability rises accordingly. Without medical supervision, glucose dysregulation and carpal tunnel symptoms are the two most commonly reported issues at those doses [3]. The Body Pharm Somatropin 40 Pen (HGH) allows a shorter lower-dose trial before committing to the larger pen, and the 100 IU vial kit gives a prescriber tighter control over reconstituted concentration when adverse effects require fine dose adjustment.

HGH for Muscle Growth: What the Research Shows

In adults with diagnosed growth hormone deficiency (GHD), somatropin replacement reliably increases lean body mass and reduces fat mass. In healthy adults without GHD, the muscle-building evidence is thinner and the use is off-label in South Africa [5][7].

The clinical case is strongest in the GHD population. Long-term replacement studies and 2020–2023 endocrinology reviews consistently report gains in lean mass, reductions in visceral adiposity, and improved exercise capacity when adult GHD patients receive doses titrated to a target IGF-1 (typically around 0.5–1.5 IU/day) [5][8]. That body of evidence underpins the SAHPRA-registered indication for somatropin as a Schedule 4 prescription medicine [7].

Outside that population, the picture shifts. SAHPRA and the FDA do not approve somatropin for muscle gain, anti-ageing, or athletic enhancement as of 2026 [6][7]. Older trials in healthy adults and trained athletes show modest changes in lean mass on DEXA, but much of that signal reflects fluid retention rather than contractile muscle tissue. Strength gains have generally not tracked the lean-mass numbers [4][5]. Combined with resistance training, results are highly individual and dose-dependent.

Practical read for off-label users

The 2–4 IU/day range often discussed sits 2–3x above adult GHD replacement [8]. A shorter trial on the Body Pharm Somatropin 40 Pen (HGH) or the 100 IU vial kit lets you assess response and tolerance before committing to longer protocols. Pair with bloods (IGF-1, fasting glucose) rather than relying on the scale.

Buying HGH in South Africa: Legal & Regulatory Context

Somatropin is a Schedule 4 (S4) prescription-only medicine in South Africa under the Medicines and Related Substances Act 101 of 1965, regulated by SAHPRA [1][2]. Legal supply requires a valid prescription from a registered healthcare practitioner. Possession or sale outside that framework is a regulatory offence.

The Body Pharm brand’s SAHPRA registration status is not confirmed in the public SAHPRA registered medicines database as of 2026 [1]. SAHPRA-registered comparators include Norditropin FlexPro (Novo Nordisk) and Genotropin (Pfizer) [6][10]. Verify the specific product registration with your prescriber or pharmacist before purchasing if regulatory status matters to you. Treat any unregistered product as off-label.

What this means before you buy

Obtain an IGF-1 baseline and a clinical assessment from a GP or endocrinologist first. If somatropin is appropriate and prescribed, the practitioner can document the indication, dose, and monitoring schedule. That paper trail also matters if you cross a border with the pen in your luggage.

Two product formats sit in the same Body Pharm range and are worth comparing on price-per-IU and convenience before deciding:

Format	Use case
Body Pharm Somatropin 100 Pen	Pre-mixed, longer running pen for established protocols
Body Pharm Somatropin 40 Pen	Shorter trial run to assess response and tolerance

Speak to your healthcare provider. Confirm current stock and pricing with the vendor at the time of purchase if prescribed.

Frequently Asked Questions

What is the half-life of somatropin?

Subcutaneous somatropin has a terminal half-life of approximately 2–3 hours in adults, according to current Norditropin and Genotropin prescribing information [1][10]. Biological effects last considerably longer because injected GH stimulates hepatic IGF-1 production, which circulates with its own much longer half-life of 12–15 hours. Once-daily dosing works clinically despite the short parent-drug half-life.

Can I use the pen without refrigeration?

No. The pre-mixed Body Pharm pen requires storage at 2–8°C, and there is no published manufacturer stability data confirming an in-use room-temperature window for this specific brand [unverified]. Branded comparators like Norditropin FlexPro allow up to 21 days at ≤25°C after first use per the 2024–2025 insert [1], but that figure cannot be safely extrapolated to Body Pharm. Default to continuous refrigeration unless your carton or leaflet states otherwise.

How many pen needles are included?

The Beskinny.store listing references included needles but does not state a confirmed quantity, and packaging can change between supplier batches [2]. Confirm the exact count at checkout and budget for an extra box of 31G or 32G, 4–8 mm screw-on pen needles to cover the full duration of the pen.

Is somatropin the same as HGH?

Yes. Somatropin is the International Nonproprietary Name for recombinant human growth hormone, the 191-amino-acid sequence identical to pituitary-derived GH [1].

What is the difference between the 40 IU and 100 IU pen?

The 100 IU pen contains 2.5x more hormone than the 40 IU pen and generally offers a lower price per IU, though exact ZAR pricing fluctuates with stock and promotions [2][7].

Spec	40 IU pen	100 IU pen
Total IU	40	100
Days at 2 IU/day	~20	~50
Best for	Trial run	Established protocol
Price-per-IU	Higher	Lower

Next Steps

Before purchasing the Body Pharm Somatropin 100 Pen, schedule an appointment with a GP or endocrinologist to obtain baseline IGF-1, fasting glucose, and HbA1c measurements. Request a prescription if somatropin is clinically appropriate for your situation. Once you have a prescription and medical clearance, confirm current pricing and stock availability with Beskinny.store or your chosen vendor, and verify the exact quantity of pen needles included in the box. Start with the 40 IU pen if this is your first trial; upgrade to the 100 IU pen once you have established a stable, clinician-monitored protocol.