Description

Rentox 100UI — Premium Botulinum Toxin Type A

Rentox 100UI is a botulinum toxin type A product from Pharma Research Bio in South Korea. It carries KFDA approval and has become a popular choice in clinics across Korea and Japan. Each vial contains 100 units, supplied as a fine, lyophilized powder for reconstitution.

Practitioners often note Rentox’s fast onset and extended duration compared to some other toxin brands. Because the powder is so fine, the vial can look nearly empty before dilution — this is normal.

At a Glance

Units per Vial	100 units
Onset	2–3 days initial, full effect within 2 weeks
Duration	6–8 months
Format	Lyophilized powder, single-dose vial
Manufacturer	Pharma Research Bio Co., Ltd., South Korea

Main Benefits

• Extended duration: results commonly last 6 to 8 months, longer than some comparable products
• Fast onset: many patients notice initial changes within 2 to 3 days
• Low diffusion profile: supports more targeted, predictable treatment
• Broad application range: suits both cosmetic wrinkle correction and several therapeutic uses

What’s Inside

Active Ingredient	Clostridium botulinum toxin type A — 100 units
Stabilizer	Human serum albumin — 0.5mg
Additive	Sodium chloride — 0.9mg
Format	Lyophilized powder, single-dose vial
Manufacturer	Pharma Research Bio Co., Ltd., South Korea

Packaging and included accessories (syringes, saline, gloves) vary by supplier — check your specific listing for exact kit contents.

What Rentox Is Made Of

Clostridium Botulinum Toxin Type A	The purified neurotoxin protein that temporarily relaxes targeted muscles
Human Serum Albumin	A stabilizing protein that helps maintain effectiveness during storage and after reconstitution
Sodium Chloride	Helps balance the solution’s pH and tonicity for safe injection

How Rentox Works

Once injected into a target muscle, botulinum toxin type A blocks the nerve signals responsible for muscle contraction. This temporarily reduces the muscle’s activity. As a result, the overlying skin’s movement-related wrinkles soften, and certain spasm-related conditions ease.

Preparation & Dilution

Practitioners reconstitute Rentox with sterile, preservative-free 0.9% saline. A standard dilution for the 100-unit vial uses 2.5mL of saline, producing a concentration of 4 units per 0.1mL.

Saline Added (100U vial)	Resulting Concentration
1.0mL	10 units per 0.1mL
2.0mL	5 units per 0.1mL
2.5mL	4 units per 0.1mL
4.0mL	2.5 units per 0.1mL

Once reconstituted, use the solution within 24 hours and store it refrigerated at 2–8°C in the meantime.

Treatment Areas

Face:

• Forehead lines and glabellar lines
• Crow’s feet
• Vertical lip lines and marionette lines (“puppet wrinkles”)
• Nasolabial folds when smiling
• Facial asymmetry correction

Body & Therapeutic:

• Hemifacial spasm and blepharospasm
• Focal spasticity of the wrist and hand in stroke patients
• Paralytic strabismus
• Hyperhidrosis of the face, hands, and underarms

Dosage & Injection Technique

For glabellar lines, a common protocol uses a 30G needle to inject 0.1mL per point across 5 sites — 2 injections in each corrugator muscle and 1 in the procerus muscle — for a total of 20 units. These muscles pull the brows together and downward, contributing to deep frown lines.

• When injecting below the orbital ridge (such as for crow’s feet), place a finger beneath the ridge to help prevent the product from migrating
• Direct the needle toward the upper center of the injection point, using a controlled volume per site
• Individual response varies by metabolism, antibody status, and lifestyle factors

Post-Treatment Care

• Remain upright for at least 4 hours after treatment to help prevent product migration
• Avoid touching, rubbing, or massaging the treated area for at least 24 hours
• Avoid applying makeup for 24 hours
• Avoid strenuous exercise, hot showers, saunas, and excessive sun exposure for 24 to 48 hours
• Avoid bending over or activities that cause a rush of blood to the head for up to 7 to 10 days
• Avoid antibiotics or other medications that affect blood clotting around the time of treatment, unless directed otherwise by a physician

Course of Treatment

2–3 days	Typical time to notice initial changes
Up to 2 weeks	Time to reach full visible effect
6–8 months	How long results from a single session generally last

Precautions

• For use by licensed medical professionals only
• Contraindicated in patients with neuromuscular junction disorders, such as myasthenia gravis, Lambert-Eaton syndrome, or ALS
• Contraindicated during pregnancy or breastfeeding
• Avoid in patients with active infection at the injection site
• Use caution with concurrent aminoglycoside, anticholinesterase, or curare-like medications
• Rare cases of distant toxin spread have been reported; always aspirate before injection and maintain emergency airway equipment on hand

Storage & Handling

• Store refrigerated at 2–8°C
• Do not freeze
• Use within 24 hours after reconstitution

Botulinum toxin type A is a prescription medical product for use by licensed healthcare professionals only. Availability may be restricted for customers in the United States; check current regulations before ordering.

Frequently Asked Questions

What is Rentox 100UI?
Rentox 100UI is a 100-unit botulinum toxin type A product from Pharma Research Bio, used for facial wrinkle correction and several therapeutic applications.

How long do results last?
Results commonly last 6 to 8 months, which is longer than many comparable botulinum toxin products.

How quickly does Rentox take effect?
Many patients notice initial changes within 2 to 3 days, with the full effect developing over the following 1 to 2 weeks.

What’s the standard protocol for glabellar lines?
A common approach uses 20 units total, injected across 5 points — 2 in each corrugator muscle and 1 in the procerus — using a 30G needle.

How is Rentox 100UI different from the 200UI version?
The 200UI version contains double the toxin per vial, making it more practical for larger treatment areas, multiple treatment zones, or clinics running higher patient volumes.

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