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Combination therapy using both blue and red LED light is often considered best. 1 2 Blue light tackles active acne bacteria to prevent new scars, while red light promotes healing, reduces inflammation, and stimulates collagen to improve the appearance of existing scars. 3 4
Light therapy can visibly diminish the look of acne scars.
As veterans in the LED light therapy game for over 15 years at REDDOT LED, we've seen the data and the results. Deciding which light works best depends on understanding how they interact with your skin and the specific type of scarring you have. Let's shed some light on the specifics.
Feeling lost in the spectrum of light therapies advertised for acne scars? It's confusing trying to figure out which color or type actually makes a difference for those lingering marks.
LED (Light Emitting Diode) therapy, specifically using red light wavelengths (around 630-660nm) and sometimes blue light (around 415nm), is considered beneficial for acne scars. 1 4 Red light aids healing and collagen remodeling, while blue light helps manage active acne, preventing future scarring. 2
Not all light is created equal when it comes to skin repair. The effectiveness hinges on the specific wavelength and its ability to interact with skin cells involved in healing and inflammation.
At REDDOT LED, our devices, manufactured under strict ISO 13485 standards and holding MDSAP/FDA/CE certifications, deliver these clinically relevant wavelengths precisely.
Caught between red and blue light for your acne scars? It's a common point of confusion, as both are frequently mentioned in relation to acne treatment. Let's clarify which one takes the lead for scar improvement.
Red light therapy is generally better for improving the appearance of
existing
acne scars.
3
4
Its strength lies in stimulating collagen production and reducing inflammation/redness. Blue light excels at preventing
new
scars by treating active acne.
1
5
Red targets existing scar structure; blue targets active acne bacteria.
Think of it this way: blue light is your defense, stopping new scar formation at the source (active breakouts), while red light is your offense, actively working to repair and fade the marks left behind.
While red light is better for the scars themselves, the best approach often involves both. Why? Because ongoing acne leads to new scars. Using blue light to manage breakouts alongside red light to heal existing marks provides a comprehensive strategy. 2 Many high-quality devices, including customizable options from REDDOT LED, offer both red and blue light settings for this reason. Some protocols even incorporate Near-Infrared (NIR) light for potentially deeper healing support. 4
Scanning through LED device options reveals a rainbow of colors. If targeting acne scars specifically, which color should you prioritize amidst the marketing noise?
Red light is the primary color recognized for helping improve the appearance of acne scars due to its healing, anti-inflammatory, and collagen-boosting properties. Blue light is crucial for preventing new scars by managing active acne. 5
Focus on red for scar healing, blue for acne prevention.
While various colors are sometimes mentioned, the bulk of scientific evidence for acne scar improvement centers around red light, with blue light playing a critical preventative role.
For directly addressing the healing and structural aspects of scarring, red light remains the most evidence-based LED color choice. At REDDOT LED, we focus on delivering these proven wavelengths and can customize combinations based on specific B2B or ODM requirements.
You might have heard old tales about sunlight helping acne or scars. But does UV light actually benefit acne scars, or could it be doing more harm than good? Let's set the record straight.
Absolutely not. UV (ultraviolet) light is harmful and does not help acne scars. It damages skin cells, increases skin cancer risk, accelerates aging, and can actually worsen hyperpigmentation, making scars darker and more prominent. 8
UV light damages skin and worsens scar appearance.
This is a critical point to understand: therapeutic LED light is completely different from UV light found in sunlight or tanning beds.
Never expose acne scars (or any skin) to excessive UV light hoping for improvement. Always use broad-spectrum sunscreen, especially on scarred areas. Stick to proven, safe technologies like LED therapy from certified manufacturers like REDDOT LED.
We've talked a lot about scars, but what about tackling the root cause – active acne itself? Which LED light is the champion when it comes to clearing up current breakouts?
Blue LED light (around 415nm) is considered the best for directly targeting active acne. It works by killing the C. acnes bacteria responsible for many breakouts. Combining blue with red light is often the most effective approach. 2
While scarring is the aftermath, managing active acne is key to preventing future marks. Blue light therapy offers a non-invasive, drug-free option for this.
While blue light kills the bacteria, it doesn't do much for the inflammation and redness that accompany pimples. This is where red light comes in:
Devices like those from REDDOT LED, offering both blue and red light modes, provide this comprehensive approach, aligning with clinical findings for optimal acne management.
Knowing light therapy's role is great, but how does it stack up against other options? What's truly considered the best way to tackle those persistent acne scars?
There's no single "best" treatment; the optimal approach depends heavily on the type, depth, and age of your scars, plus your skin type. 10 Often, a combination of therapies tailored by a dermatologist yields the best results. LED therapy is a valuable tool, especially for redness and mild texture. 3
Multiple treatments exist; the best depends on scar type.
Acne scars are diverse, ranging from flat discoloration to deep pits or raised tissue. Effective treatment requires matching the therapy to the specific scar morphology.
Red light therapy stands out for improving existing acne scars, particularly redness and mild texture, by boosting healing and collagen. Blue light is key for preventing new scars and targeting active acne. Often, combining them yields the best results. Remember, UV light is harmful , and severe scars typically require professional treatments , where LED therapy can serve as a valuable supporting tool.
References
LED Light Therapy: How It Works, Colors, Benefits & Risks , Cleveland Clinic. (Covers Blue for acne, Red for inflammation, combination)
Red Light Therapy: Effectiveness, Treatment, and Risks , WebMD, May 14, 2024. (Covers Red light for inflammation, wound healing)
Light-emitting diodes in dermatology: A systematic review of randomized controlled trials , Glass GE., PMID: 30117909, Aug 17, 2018. (Reviews evidence for various conditions, including acne scars)
Reverse skin aging signs by red light photobiomodulation , F. Loret, et al., NCBI PMC, Jul 21, 2022. (Details Red light mechanism, collagen)
Blue light therapy for acne , M Gold, et al., NCBI PMC, Jul 1 2009. (Details Blue light mechanism on C. acnes)
Acne Scars: Diagnosis and treatment , American Academy of Dermatology (AAD). (Overview of professional scar treatments)
Use of light-emitting diode photomodulation… for the treatment of photoaging , Baez F, Reilly LR., PMID: 17603913, 2007. (Mentions potential for pigmentation, though older source)
How the Sun and UV Rays Damage Your Skin , Cleveland Clinic. (Explains UV damage mechanisms)
Ultraviolet (UV) Radiation , American Cancer Society. (Details UV risks including cancer and aging)
Acne Scars Treatments: What's the Best One for You? , Johns Hopkins Medicine. (Discusses various professional treatments)