Product Overview
- Product Name: Finasteride
- Molecular Formula: C₂₃H₃₆N₂O₂
- Molecular Weight: 372.55
- CAS Number: 98319-26-7
- EINECS Number: 620-534-3
- Finasteride Drug Class: Steroidal hormone drug
What is Finasteride?
Finasteride is a 4-azasteroid compound that appears as a white to off-white powder.A core pharmaceutical ingredient used clinically to treat androgen-related disorders in men.It is particularly effective for benign prostatic hyperplasia and male androgenetic alopecia.
This drug inhibits only DHT without affecting testosterone levels themselves; consequently, it causes minimal endocrine disruption and offers a favorable safety profile for long-term use.Buy Finasteride API, choose Highassay; contact customer service to request a free sample.
Highassay’s Adantages
Highassay provides high-purity (≥99%) finasteride powder to support the production and R&D of your finasteride formulations.
- Regulatory Compliance & Certifications
Compliant with CP, USP, EP, and BP standards; comprehensive data and GMP manufacturing assurance provided.
- Process Excellence & Superior Purity
Purity ≥99%, with strict impurity control; suitable for oral and topical formulations.
- Ample Capacity & Fast Delivery
We possess large-scale production capabilities, offer flexible packaging services, and support global supply.
- Cost-Effective & Competitive Pricing
Proprietary synthesis route, no patent risks, and controllable raw material costs—helping you rapidly capture the market.
What is Finasteride used for？
Finasteride for hair loss: Indicated for male androgenetic alopecia (AGA); the common oral dosage is 1 mg.
Finasteride for prostatic hyperplasia: It is used to treat various urinary symptoms caused by benign prostatic hyperplasia (BPH), most commonly in the form of 5 mg tablets or capsules.
Specification of Finasteride
- Specification of Finasteride
| Items | Specification |
| Appearance | White to off-white crystalline powder, odorless |
| Solubility | Freely soluble in methanol, ethanol and chloroform; slightly soluble in acetonitrile and ethyl acetate; practically insoluble in water |
| Assay (on dried basis) | 98.0% – 102.0% (HPLC) |
| Purity | ≥ 99% |
| Specific Rotation | +14° ~ +18° (in methanol) |
| Loss on Drying | ≤ 0.5% |
| Residue on Ignition | ≤ 0.1% |
| Heavy Metals | ≤ 10 ppm |
| Related Substances | Total impurities ≤ 1.0%; single impurity ≤ 0.5% |
| Melting Point | Approximately 253°C |
| Storage | Preserve in a light-resistant, tightly closed container, in a cool and dry place |
No. Finasteride is not recommended for use by women of childbearing age, whether in oral or topical formulations. Currently, it is a medicinal ingredient intended exclusively for use by adult men.
The 5 mg dose is for BPH, not hair loss. Taking a higher dose won’t work better for hair regrowth—it only increases the chance of side effects.
Both dutasteride and finasteride are used for male hair loss and BPH, but they differ in how they work, how strong they are, how fast they’re cleared from the body, their side effects, and what formulations are available.
The primary function of topical finasteride is to inhibit DHT production locally on the scalp, thereby promoting hair growth, while significantly reducing the systemic side effects (such as sexual dysfunction) potentially associated with oral medication.
Using them together yields the best results. Studies show that the improvement rate after one year of using finasteride alone is approximately 80.5%, and for minoxidil alone, it is about 59%; however, the efficacy rate reaches as high as 94% when the two are used in combination for a year.
Mechanism of action of finasteride
As a type II 5α-reductase inhibitor, finasteride competitively blocks the conversion of testosterone to dihydrotestosterone (DHT), thereby reducing DHT levels in serum, the prostate, and scalp hair follicles.
- In the prostate, elevated DHT levels cause prostatic hyperplasia, which compresses the urethra and leads to symptoms such as urinary frequency and urgency.
- For hair follicles, excessively high levels of DHT cause miniaturization of the follicles on the scalp, leading to thinning hair and hair loss.
Types of Finasteride Preparations
Our finasteride raw material offers exceptional versatility, making it suitable for the production of various oral dosage forms, as well as for the R&D, pilot-scale testing, and mass production of topical formulations.
- Oral finasteride:
Finasteride tablets, finasteride soft capsules, finasteride hard capsules, and compound oral preparations.
- Topical finasteride:
Finasteride spray, finasteride solution, finasteride foam, finasteride gel.
Finasteride Packaging Specifications
- Standard Industrial Packaging: Available in 1kg aluminum foil bags and 25kg fiber drums, suitable for large-scale production and long-term inventory stocking.
- Experimental/Trial Packaging: Small-quantity packaging (e.g., 100g) is available to meet needs for laboratory testing, formulation development, and pilot-scale trials.
- Customized Packaging: Flexible customization of packaging specifications is available to meet specific customer requirements.
Finasteride Pricing and Minimum Order Quantity (MOQ)
Highassay offers flexible MOQs and tiered pricing. Please provide details such as specifications and quantities, and we will send you the latest pricing within 24 hours.
Finasteride Documentation
Please contact the Highassay sales team directly to obtain documentation such as MSDS and COA.
