Spider veins affect an estimated 50-55% of women and 40-45% of men in the United States, creating enormous demand for cosmetic vein treatments. Sclerotherapy — the injection of a solution that collapses unwanted veins — remains the gold standard for spider vein removal, offering med spas a high-margin service with minimal equipment investment and strong patient demand year-round.

Market Opportunity: The cosmetic vein treatment market exceeds $1.5 billion annually in the US. Sclerotherapy sessions cost $300-$500 with COGS under $80, delivering 80-90% gross margins. Most patients need 2-4 sessions, creating natural repeat visits.

Understanding Sclerotherapy

Sclerotherapy involves injecting a sclerosing agent directly into unwanted spider veins and small reticular veins using a fine needle (30-32 gauge). The solution damages the vein's endothelial lining, causing it to collapse, seal shut, and gradually be absorbed by the body over 3-6 weeks. The procedure has been used since the 1930s and remains the most effective non-surgical treatment for spider veins on the legs.

Types of Sclerosing Agents

Agent Brand Names Best For Cost Per Vial
Sodium Tetradecyl Sulfate (STS) Sotradecol Small to medium spider veins (0.5-3mm) $30-$60
Polidocanol Asclera (FDA-approved for spider veins) Fine spider veins (0.5-2mm); less painful $80-$150
Hypertonic Saline (23.4%) Generic Very fine spider veins; least expensive $5-$15
Polidocanol Foam Varithena (FDA-approved) Larger reticular veins (2-4mm) $150-$300

Recommendation: Most med spas should stock both polidocanol (Asclera) for fine spider veins and sodium tetradecyl sulfate for medium veins. Polidocanol causes less pain during injection and lower risk of hyperpigmentation, making it preferred for first-time patients.

Equipment and Setup Costs

Sclerotherapy requires minimal equipment investment compared to other aesthetic procedures, making it an excellent addition to any med spa's service menu.

Essential Equipment

Item Cost Notes
Vein Light / Transilluminator $200-$1,500 Helps visualize feeder veins; not essential but improves outcomes
Magnification Lamp $150-$400 LED magnifying lamp for precise needle placement
Syringes (1mL, 3mL) $0.30-$0.50 each Use 1mL syringes for precision; Luer-lock preferred
Needles (30-32 gauge) $0.15-$0.30 each 30G for reticular veins; 32G for fine spider veins
Compression Stockings (for patient purchase) $15-$40 wholesale Medical-grade 20-30mmHg; sell at $40-$80 retail
Cotton Balls, Tape, Alcohol Pads $2-$5/patient Basic supplies for injection sites
Treatment Chair/Table $500-$2,000 Adjustable position for leg elevation; existing exam table works

Total Startup Cost: $1,500-$5,000 to add sclerotherapy services to an existing med spa (excluding sclerosing agent inventory). This is one of the lowest-investment procedures you can add.

Treatment Protocol

Pre-Treatment Assessment

  1. Medical history review: Screen for DVT history, clotting disorders, pregnancy, allergies to sclerosing agents, and current medications (especially blood thinners)
  2. Vein assessment: Map spider veins and identify feeder reticular veins. Use vein light for subsurface visualization.
  3. Duplex ultrasound referral: If you suspect underlying venous insufficiency (varicose veins, edema, skin changes, leg heaviness), refer to a vascular specialist before cosmetic treatment
  4. Photography: Standardized photos of treatment areas for documentation and marketing (with consent)
  5. Pre-treatment instructions: Avoid aspirin, ibuprofen, and fish oil for 48-72 hours. No leg shaving day of treatment. Wear loose clothing.

Injection Technique

  1. Position patient with treated leg slightly elevated but accessible
  2. Clean treatment area with alcohol; allow to dry
  3. Draw sclerosing agent into 1mL syringe with 30-32G needle
  4. Insert needle at 15-30 degree angle, bevel up, into the vein
  5. Confirm intravascular placement — resistance should be minimal, no blanching of surrounding skin
  6. Inject 0.1-0.5mL per injection site (small spider veins: 0.1-0.2mL; reticular veins: 0.3-0.5mL)
  7. Apply cotton ball and tape to each injection site immediately
  8. Treat feeder veins first, then smaller branch spider veins
  9. Limit total volume per session: 10mL maximum of sclerosing solution

Safety Limit: Do not exceed 10mL total volume of sclerosing agent per session. Injecting too much can cause systemic side effects. If the patient has extensive spider veins, plan multiple sessions 4-6 weeks apart.

Post-Treatment Protocol

Pricing and Profitability

Cost Per Treatment

Cost Component Per Treatment
Sclerosing Agent (Asclera/STS) $15-$60
Syringes and Needles $3-$8
Cotton, Tape, Alcohol $2-$5
Gloves, Drapes $2-$4
Total COGS $22-$77
Provider Time (30-45 min @ $50-$80/hr) $25-$60
Total Direct Cost $47-$137

Revenue Per Hour: At $400 per 30-minute session with $75 average direct cost, sclerotherapy generates $650/hour in gross profit — among the highest revenue-per-hour rates of any med spa procedure.

Pricing Models

Revenue Projections

Volume Sessions/Month Avg. Price Monthly Revenue Monthly Profit
Low 15 $375 $5,625 $4,500
Medium 30 $400 $12,000 $9,600
High 50 $425 $21,250 $17,000

Patient Selection and Consultation

Ideal Candidates

Contraindications

When to Refer to a Vascular Specialist

Red Flags for Referral: Bulging varicose veins (>4mm), leg edema, skin discoloration (hemosiderin staining), venous ulcers, leg pain or heaviness that worsens with standing, history of blood clots. These symptoms suggest venous insufficiency requiring duplex ultrasound before cosmetic treatment.

Complications and Risk Management

Common Side Effects (Expected)

Rare but Serious Complications

Marketing Sclerotherapy Services

Seasonal Demand Patterns

Sclerotherapy has a natural seasonal pattern that smart practices can use for marketing.

Target Demographics

SEO and Content Strategy

Streamline Your Med Spa Operations

RunMedSpa's AI assistant manages appointment scheduling, follow-up reminders, and treatment tracking for procedures like sclerotherapy — so you can focus on delivering results.

Join the Waitlist

Training and Certification

Provider Training Requirements

Training Resources

Integrating Sclerotherapy with Other Services

Sclerotherapy patients are excellent candidates for additional aesthetic treatments. Build comprehensive treatment plans that address multiple concerns.

Key Takeaways