Swelling after an innotox 100u injection typically fades within 1 to 5 days, with the majority of patients seeing the puffiness resolve by day 2–3. In most cases the swelling is mild, peaks within the first 12–48 hours, and then steadily declines without any special treatment.
Why Swelling Happens
When the botulinum‑toxin solution is injected, the needle creates a tiny wound in the skin or muscle. The body’s natural inflammatory response sends fluid and immune cells to the area, which shows up as swelling, redness, or a slight bruise. Because innotox 100u is a liquid formulation that contains a buffering agent to keep the toxin stable, the injection volume per site is small (usually 0.05–0.2 mL), which helps keep the reaction brief.
Swelling Duration by Injection Site
| Area | Typical Dose (units) | Average Swelling Duration | Peak Swelling (hours post‑injection) |
|---|---|---|---|
| Glabella (frown lines) | 8–12 | 1–3 days | 12–24 |
| Forehead (horizontal lines) | 10–20 | 1–2 days | 8–12 |
| Crow’s feet (periorbital) | 6–12 | 2–4 days | 24–36 |
| Masseter (jaw) | 20–30 per side | 2–5 days | 24–48 |
| Nasalis (bunny lines) | 4–6 | 1–2 days | 6–12 |
What the Clinical Data Say
A 2022 multicenter trial with 120 participants who received innotox 100u for facial lines reported the following swelling outcomes:
- Mean swelling duration: 2.4 days (SD ± 0.9).
- 70 % of subjects had no visible swelling after 48 hours.
- 90 % were clear of puffiness by day 5.
- Only 3 % reported swelling lasting longer than a week, typically when the injection site was the masseter muscle.
These numbers line up with real‑world feedback from board‑certified dermatologists who use the product in practice.
“In my clinic, roughly 80 % of patients report that any puffiness after a standard innotox 100u session resolves within 48 hours without any intervention.” — Dr. Ji‑won Lee, Dermatologist, Seoul
Factors That Can Extend Swelling
While the baseline timeline is short, several patient‑specific variables may push the swelling window toward the longer end:
- Skin type and age: Thinner, older skin tends to retain fluid a bit longer.
- Injection depth: Deep muscle injections (e.g., masseter) involve more tissue trauma, which can prolong edema.
- Concurrent medications: Blood‑thinners, NSAIDs, or high‑dose vitamin E can increase bruising and swelling.
- Allergic response: Rare, but a localized histamine reaction can cause pronounced swelling that lasts up to 7–10 days.
- Aftercare compliance: Skipping cold compresses or exposing the area to heat can exacerbate inflammation.
Practical Tips to Keep Swelling Minimal
- Pre‑treatment steps
- Avoid aspirin, ibuprofen, and other NSAIDs for 5–7 days before the session (unless prescribed for a medical condition).
- Skip alcohol and limit sodium intake the day before to reduce fluid retention.
- Immediately after the injection
- Apply a clean, cold compress for 5 minutes on, 10 minutes off during the first 2 hours.
- Keep your head elevated (propped up with pillows) for at least 2–3 hours.
- First 24 hours
- Steer clear of strenuous exercise, saunas, steam rooms, or hot showers.
- Do not massage, rub, or apply pressure to the treated area.
- Use a gentle, fragrance‑free moisturizer if the skin feels tight, but avoid heavy occlusive creams.
When to Call a Professional
Most swelling is harmless, but you should reach out to your provider if you notice:
- Swelling that worsens after 48 hours.
- Persistent redness, warmth, or pain that feels more like an infection than simple edema.
- Vision changes, drooping eyelids beyond the expected muscle relaxation, or difficulty swallowing (rare, but require immediate medical attention).
Bottom Line
Expect the puffiness to be at its worst in the first 12–48 hours after an innotox 100u treatment, and then steadily fade over the next 1–4 days. With proper pre‑ and post‑care, the majority of patients see any visible swelling disappear well before a week passes. If you have underlying health conditions or are on medications that affect clotting, discuss those with your clinician beforehand so they can tailor the after‑care plan to your situation.
Key references (1) Hugel Pharma, Innotox 100u Product Insert, 2023. (2) Kim S. et al., “Safety and Efficacy of Innotox in Facial Rejuvenation,” J Dermatol Treat, 2022;33(4):1120‑1127. (3) American Society for Dermatologic Surgery, Post‑Procedure Care Guidelines, 2021.