Frequently AskedQuestions

Sentio devices combine multiple clinically-studied technologies in a single tool. While most products rely on just one approach, our devices layer LLLT, LED light therapy, infrared heat, and ionic conditioning to work at every level — follicle, dermis, and cuticle — simultaneously.

For hair regrowth and scalp health: The Laser Therapy Brush uses 650-655nm LLLT to stimulate follicles and promote thicker, healthier hair.

For skin rejuvenation: The Glow Mask & Neck combines four targeted wavelengths — 415nm blue, 590nm yellow, 660nm red, and 850nm near-infrared — to support collagen, calm redness, and promote cellular repair.

For styling with less damage: The Infrared Titanium Flat Iron heats hair from the inside out, preserving moisture. The Air Styler offers versatile styling with ionic technology. The Styling Comb delivers quick touch-ups with Korean tourmaline ions.

Low-Level Laser Therapy (LLLT) uses specific wavelengths of red light (650-655nm) to penetrate the scalp and stimulate cellular activity. The light is absorbed by mitochondria, triggering ATP production, extending the hair growth phase, and increasing blood flow to follicles. This technology has been studied for over 50 years with approximately 80% of users seeing clinical improvement.

Blue Light (415nm): Targets the epidermis to address acne-causing bacteria and help reduce inflammation.

Yellow Light (590nm): Helps balance skin tone and calm visible redness.

Red Light (660nm): Penetrates the dermis to support collagen production and improve the appearance of fine lines and texture.

Near-Infrared (850nm): Penetrates deepest to support cellular repair.

Traditional styling tools heat hair from the outside, scorching the cuticle. Infrared heat penetrates the hair shaft and heats gently from the inside out. This preserves the protective cuticle layer, retains moisture, and achieves the same styling results at lower temperatures with significantly less damage.

Our devices use Korean tourmaline, which generates millions of negative ions when heated. These ions neutralize the positive charge that causes frizz and static, seal the hair cuticle to lock in moisture, and bring your hair's natural oils to the surface for a smooth, healthy shine — without added products.

Styling tools (Flat Iron, Air Styler, Comb): Immediate results — smoother, shinier, frizz-free hair from first use.

Laser Therapy Brush: Most users notice reduced shedding within 4-6 weeks. Visible thickness and regrowth typically appear between 3-6 months with consistent use.

Glow Mask: Improved skin texture and radiance within 2-4 weeks. More significant improvements in fine lines and tone over 8-12 weeks.

Laser Therapy Brush: 10-15 minutes, 3-4 times per week for optimal results.

Glow Mask: 10-20 minutes, 3-5 times per week depending on your skin goals.

Styling tools: As needed for styling. The infrared and ionic technology protects your hair even with regular use.

Yes! Our devices are designed to complement each other. For example, use the Laser Therapy Brush for scalp health, then style with the Infrared Flat Iron or Air Styler. The technologies work synergistically — LLLT strengthens follicles while infrared and ionic styling protects and smooths the hair you're growing.

Yes. All Sentio devices use technologies that have been extensively studied for home use. LLLT and LED therapy are widely used in consumer beauty and wellness devices. Sentio devices are designed for non-invasive cosmetic use at home, and our infrared styling tools operate at safer temperatures than traditional tools while delivering comparable results.

Consult your doctor before use if you:

• Are pregnant or nursing
• Have a history of skin cancer or photosensitivity
• Take medications that increase light sensitivity
• Have epilepsy or are prone to seizures
• Have open wounds or active skin conditions in the treatment area

The Laser Therapy Brush is not recommended for completely bald areas with no follicle activity.

Yes. Sentio devices are designed to work on all hair types (straight, wavy, curly, coily) and all skin tones. The Infrared Flat Iron has adjustable temperature settings to accommodate different hair textures, and the LED Glow Mask uses wavelengths that are safe and effective for all skin types.

Every Sentio device includes a limited lifetime warranty covering manufacturing defects in materials and workmanship under normal use. If your device experiences a covered defect, our support team will guide you through the repair or replacement process. This warranty reflects our confidence in the build quality of every product we make.

Contact our support team with your order number and a brief description of the issue. We'll guide you through the process and get your replacement on the way as quickly as possible. No receipts to dig up, no hoops to jump through.

Styling tools: Wipe plates with a soft, dry cloth after each use. Never submerge in water. Store in a heat-safe location.

Laser Brush: Clean bristles gently with a dry cloth. Keep the laser diodes free of product buildup.

Glow Mask: Wipe the silicone surface with a damp cloth after use. Store away from direct sunlight.

Orders typically ship within 1-3 business days. Delivery times vary by location — domestic orders usually arrive within 3-7 business days. You'll receive tracking information via email once your order ships.

Styling tools and accessories may be returned or exchanged within 14 days of delivery, provided they're unused or gently used and in original packaging with all accessories included. LED masks and personal-use devices are final sale once opened, for hygiene reasons. See our full Returns & Exchanges policy for details.