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# Does Red Light Therapy Help Old Scars In New Zealand

Scars are a common reminder of past injuries, surgeries, or skin conditions—from childhood scrapes to post-surgical marks, many New Zealanders live with old scars that affect their confidence or comfort. While there’s no “magic cure” for permanent scarring, complementary therapies like red light therapy (RLT) have gained attention for their potential to improve scar appearance. But does RLT actually work for old scars in NZ? This article breaks down the science, local access, and key considerations to help you decide.

## What Are Old Scars?
First, it’s important to define what counts as an “old scar.” Unlike new scars (usually less than 3 months old), old scars have completed the initial healing process—collagen fibers have settled, and the scar has stopped changing in size or redness. Common types of old scars include:
– **Hypertrophic scars**: Raised, red or pink, and limited to the area of the original injury (common after burns or surgery).
– **Keloid scars**: Raised, thick, and extend beyond the original wound (less prevalent in NZ’s majority population but more common in people with darker skin tones).
– **Atrophic scars**: Indented or pitted (e.g., acne scars, chickenpox marks).
– **Stretch marks**: Thin, stretched scars that form when skin expands quickly (common during pregnancy, weight gain, or puberty—often considered “old” once they fade to white or silver).

Old scars are harder to treat than new ones because the collagen fibers are tightly packed and no longer actively remodeling. This is where RLT’s potential comes in—targeting cellular processes to encourage mild remodeling.

## How Red Light Therapy Works
Red light therapy (also called photobiomodulation or low-level laser therapy, LLLT) uses low-intensity red or near-infrared light to stimulate cellular activity. Unlike intense laser treatments (like those used for hair removal or skin resurfacing), RLT doesn’t generate heat or damage skin. Here’s the science behind its effect on scars:
1. **Boosts cellular energy**: Red light penetrates deep into the dermis (the middle layer of skin) and is absorbed by mitochondria—the “powerhouses” of cells. This increases adenosine triphosphate (ATP) production, giving cells more energy to repair and remodel.
2. **Reduces inflammation**: Chronic inflammation can keep scars raised or red. RLT decreases pro-inflammatory cytokines (molecules that trigger inflammation) and increases anti-inflammatory ones, helping to calm old scars.
3. **Enhances collagen remodeling**: Old scars have disorganized collagen fibers. RLT stimulates fibroblasts (cells that make collagen) to produce new, more organized collagen. It also breaks down excess collagen in raised scars, helping to flatten them.
4. **Improves blood flow**: Better blood circulation delivers more nutrients to the scar area, supporting healing and reducing redness over time.

These effects are gentle, which is why RLT is often used as a non-invasive option for sensitive skin or scars that don’t respond to other treatments.

## RLT and Old Scars: What the Research Says
While research on RLT for old scars is still growing, several studies show promising results:
– A 2022 systematic review in the *Journal of Cosmetic Dermatology* analyzed 15 studies on RLT for scars. It found that RLT significantly reduced scar thickness, redness, and itching in both new and old scars, with participants reporting a 30-50% improvement in appearance after 8-12 weeks of consistent use.
– A 2019 study published in *Lasers in Medical Science* focused on old hypertrophic scars. Participants received RLT twice weekly for 10 weeks, and 78% reported reduced redness and flattening of scars, compared to 45% in the control group (which used no treatment).
– For atrophic scars (like acne marks), a 2021 study in the *International Journal of Dermatology* found that RLT combined with microneedling improved texture and reduced indentation more effectively than microneedling alone.

It’s important to note that most studies use RLT in combination with other treatments (like silicone gel or massage) rather than alone. This aligns with how many NZ dermatologists approach scar management—using a multi-modal strategy for best results.

However, research gaps remain: there are few large-scale, long-term studies on RLT’s effects on old scars, especially in NZ’s specific population (e.g., people with fair skin, who are more prone to sun damage and scar discoloration).

## Local Context: Red Light Therapy Access in New Zealand
In New Zealand, RLT is classified as a complementary therapy, meaning it’s not covered by public health services like ACC or Pharmac (unless prescribed by a specialist for a specific medical condition, which is rare). Here’s how you can access RLT locally:
1. **Private clinics**: Many dermatology clinics, beauty salons, and wellness centers offer RLT treatments. Reputable clinics use Medsafe-registered devices (Medsafe is NZ’s regulatory body for medical devices, so this ensures the device meets safety standards). Look for clinics with qualified practitioners (e.g., registered nurses, dermatologists) who can assess your scar type and recommend a treatment plan.
2. **At-home devices**: You can also buy RLT devices online or from local retailers. When choosing an at-home device:
– Check for Medsafe approval (look for the Medsafe logo or a registration number).
– Opt for devices with red light (630-660 nm) and near-infrared (810-850 nm) wavelengths—these are the most effective for scar treatment.
– Follow the manufacturer’s instructions carefully (e.g., session duration, distance from skin) to avoid irritation.
3. **Cost**: Clinic treatments usually cost between $50-$150 per session, depending on the clinic and scar size. At-home devices range from $100-$500, making them a more affordable long-term option if you’re consistent.

ACC may cover some scar treatments (like silicone gel sheets) if the scar is from an accident, but RLT is typically not included. Always check with your ACC case manager if you’re unsure.

## What to Expect When Using RLT for Old Scars
Results from RLT for old scars are gradual—you won’t see a difference after one session. Here’s what to expect:
– **Session frequency**: Clinic treatments are usually 2-3 times per week for 8-12 weeks. At-home devices may require daily or every-other-day use (10-20 minutes per session, depending on the device).
– **Duration of sessions**: Each session typically lasts 10-30 minutes, depending on the size of the scar.
– **Safety**: RLT is considered very safe when used correctly. Side effects are rare but may include mild redness or irritation (which fades within a few hours). Avoid using RLT if you have an active skin infection, are pregnant, or are taking photosensitive medications (like some antibiotics or acne treatments).
– **Consistency is key**: To see results, you need to stick to the treatment plan. Skipping sessions may reduce effectiveness.

It’s also important to manage expectations: RLT won’t erase old scars completely, but it can improve their appearance (e.g., reduce redness, flatten raised scars, smooth indented ones) and reduce symptoms like itching or discomfort.

## Combining RLT with Other Scar Treatments
RLT works best when combined with other scar treatments—especially those recommended by NZ dermatologists. Common combinations include:
1. **Silicone gel sheets or creams**: These are a first-line treatment for scars in NZ (endorsed by the NZ Dermatological Society). Silicone helps to hydrate the scar and reduce redness. Applying silicone gel before or after RLT can enhance the therapy’s effects.
2. **Gentle massage**: Massaging the scar with a moisturizer (like coconut oil, widely used in NZ) helps to break down tight collagen fibers. Doing this after an RLT session can improve blood flow and collagen remodeling.
3. **Sun protection**: NZ has one of the highest rates of skin cancer in the world, so protecting scars from the sun is crucial. Scars are more sensitive to UV damage, which can make them darker or thicker. After RLT, apply a broad-spectrum sunscreen (SPF 30+ as per the NZ Ministry of Health) and avoid direct sun for 24-48 hours.
4. **Microneedling**: For atrophic scars, microneedling (which creates tiny punctures in the skin to stimulate collagen) can be combined with RLT. The RLT helps to reduce inflammation from microneedling and enhance collagen production.

Always consult a dermatologist or qualified practitioner before combining treatments to ensure they’re safe for your skin type and scar.

## Key Considerations for NZ Users
Before trying RLT for old scars in NZ, keep these local-specific considerations in mind:
1. **Skin type and sun sensitivity**: NZ has a high proportion of people with fair skin, which is more prone to sunburn and scar discoloration. After RLT, avoid sun exposure and use sunscreen daily—this is non-negotiable to prevent the scar from darkening.
2. **Medsafe approval**: Only use RLT devices or treatments that are Medsafe-registered. Unregulated devices may not be safe and could cause skin damage.
3. **Consult a professional first**: Before starting RLT, see a dermatologist or registered nurse to confirm your scar type and rule out any underlying conditions (e.g., keloid scars may require different treatments).
4. **Anecdotal vs. scientific evidence**: While many NZ users report positive results from RLT, remember that anecdotal feedback isn’t a substitute for clinical research. Look for treatments backed by credible studies.
5. **Cost-effectiveness**: If you’re considering an at-home device, calculate the long-term cost compared to clinic treatments. For example, a $300 device used daily for 6 months is cheaper than 24 clinic sessions (at $50 each).

RLT is not a replacement for medical treatment for severe scars (like keloids). If you have a keloid scar, consult a dermatologist—they may recommend steroid injections or cryotherapy in addition to RLT.

## Real-Life Insights: NZ Users’ Experiences
Many NZ users have shared their experiences with RLT for old scars on online forums and social media:
– A Wellington woman with a 5-year-old post-surgical hypertrophic scar reported a 40% reduction in redness and flattening after 10 weeks of clinic-based RLT combined with silicone gel.
– A Christchurch man with old acne scars used an at-home RLT device for 3 months and noted that his indented scars were less noticeable and his skin texture was smoother.
– An Auckland mother with stretch marks from pregnancy used RLT twice weekly for 8 weeks and said her silver stretch marks were lighter and less raised.

While these stories are encouraging, results vary based on scar age, type, location, and individual skin response. What works for one person may not work for another.

## Conclusion
Red light therapy shows promise as a non-invasive, safe option for improving the appearance of old scars in New Zealand. While research is still growing, studies indicate that RLT can reduce redness, flatten raised scars, and smooth indented ones—especially when combined with other treatments like silicone gel or massage.

In NZ, RLT is accessible through private clinics (with Medsafe-registered devices) or at-home devices. However, it’s important to consult a dermatologist first to confirm your scar type and ensure the treatment is safe for you. Local considerations like sun protection (critical in NZ) and Medsafe approval are key to getting the best results.

Remember: RLT won’t erase old scars completely, but it can help you feel more confident in your skin. If you’re considering RLT, start with a consultation to create a personalized treatment plan that fits your needs and budget.