Collagen maintains skin elasticity and enhances radiance. Collagen injections can alleviate atrophic acne scars, delay aging, reduce wrinkles, and combat signs of aging. However, they are not 100% risk-free. Improper administration or inadequate post-treatment care may lead to side effects.
What are the potential side effects of collagen injections?
1. Allergic reactions and infections
Exogenous collagen is considered a foreign protein to the skin, potentially triggering allergic responses. These typically manifest as spontaneous reactions like skin rashes and itching. Severe cases require immediate medical attention.Collagen injections are an invasive cosmetic procedure that inevitably leaves small puncture marks on the skin. Inadequate needle sterilization at unregulated clinics may cause wound infections. Additionally, failure to properly care for the treated area post-procedure can lead to infection if the site comes into contact with water.
2. May cause bruising and discoloration
During collagen injection, needles may puncture capillaries. While large blood vessels are rarely targeted, minor bleeding can occur, resulting in localized bruising or discoloration. These temporary adverse reactions typically subside within one week.
3. Overdose or excessive injection
Generally, only one milliliter of collagen should be injected per area. Overinjection can cause abnormal skin protrusions. In severe cases, the collagen must be promptly removed. Extraction is highly challenging and may leave facial scars.
4. Significant swelling and pain
After collagen injection, noticeable swelling and mild discomfort may occur. These symptoms typically subside within two days. If persistent swelling or pain occurs, seek medical attention promptly to rule out infection.
5. May cause hyperpigmentation
If collagen is injected too superficially or if sun protection is neglected post-injection, hyperpigmentation may occur. Apply a brightening mask twice weekly for one month after collagen injection to promote rapid melanin excretion and breakdown.
Important Reminder
Collagen injections carry five potential side effects. However, allergic reactions and bruising are normal phenomena—there is no need for excessive concern. Choose a reputable hospital for collagen injections to minimize side effects. Avoid getting the injection site wet for 24 hours post-procedure.