Price: $49.99
(as of Apr 18, 2026 23:36:16 UTC – Details)
Product description
Finally, a Flat Iron That Actually Works for Thick Hair 
If you’ve ever spent an hour straightening your hair only to see frizz creeping back by lunchtime, you know the frustration. Most flat irons just aren’t built for thick, coarse, or curly textures — the plates are too narrow, the heat is inconsistent, and your hair ends up dry and damaged.
The TERVIIIX ONYX GLEAM was designed with one goal: to give you smooth, shiny, long-lasting results without destroying your hair in the process.
What Makes It Different?
Our extended 4.7-inch plates (20% longer than standard irons) allow you to grab wider sections of hair from root to tip in one go.
1.75″ Argan Oil & Keratin infused ceramic plates glide smoothly to condition hair. Triple-action negative ion tech seals in moisture, kills static, and stops frizz instantly.
Our precision-engineered floating plates deliver full plate-to-plate contact from edge to edge, ensuring every strand gets consistent heat and tension—even on the thickest, most stubborn hair.
The Onyx Gleam features 1.75-inch wide floating plates designed to provide the firm tension needed to straighten kinky, curly, and coarse hair textures effortlessly without snagging or pulling.
Heat That Actually Penetrates 
With 11 temp settings from 250°F to 455°F, you’re in full control of your style. The digital display shows your precise temperature, and the 90W heating system reaches your selected heat in about 20 seconds. For thick, coarse hair, the high-heat option keeps your style long‑lasting—even in humidity.
1 Coil Ready
2 2x Faster
3 2-in-1 Style
Take It Anywhere
Still Hot? Still Ready to Pack.
The included silicone heat mat wraps right around the plates — store it the second you’re done. Zero cool-down time. Zero hassle.
Dual voltage (100-240V) means this straightener works in any country. The 360° swivel cord keeps your workspace tangle-free, and the auto shut-off feature gives you peace of mind if you forget to turn it off.
What’s in the Box? 
A heat-resistant pouch and styling glove are included so you’re ready to go from day one. Everything you need to start styling — no extra purchases required.
Product Dimensions : 12.99 x 1.97 x 1.97 inches; 1.81 Pounds
Item model number : FA100
Date First Available : February 23, 2026
Manufacturer : Terviiix
ASIN : B0GDMQRGL7
Best Sellers Rank: #66,662 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #230 in Hair Straightening Irons
Customer Reviews: 4.7 4.7 out of 5 stars (27) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
EXTRA WIDE 1.75″ CERAMIC PLATES FOR THICK CURLY HAIR (TYPE 3A-4C): Stop struggling with narrow flat irons. Our wide floating plates with full plate-to-plate contact grab more hair root to tip in every pass – straighten thick, coarse, kinky, and natural hair textures effortlessly without pulling or snagging. Cuts styling time by 50%
ARGAN OIL & KERATIN INFUSED FOR SILK PRESS RESULTS: Unlike standard ceramic flat irons, our nano-ceramic plates are baked with Argan Oil and Keratin that activate with heat to seal cuticles. Combined with 8 million negative ions, this ionic hair straightener eliminates frizz and locks in moisture for a glass-like silk press finish
455F PROFESSIONAL HAIR STRAIGHTENER WITH SMART SENSOR TECHNOLOGY: 11 adjustable heat settings from 250F to 455F with rapid 60-second heat-up. The advanced sensor maintains consistent temperature across the entire 4.7-inch extra-long plate – no hot spots, no uneven straightening. Get sleek, one-pass results even on the most stubborn hair
WIDE FLAT IRON DESIGNED FOR BLACK WOMEN HAIR & NATURAL TEXTURES: Purpose-built for the thick, coarse, and textured hair that other straighteners fail on. This straightener for thick hair delivers the firm tension and high heat needed for a flawless silk press on 4C natural hair – smooth, shiny results without heat damage, every wash day
DUAL VOLTAGE TRAVEL FLAT IRON WITH AUTO SHUT-OFF & ACCESSORIES: Style anywhere worldwide with 100-240V auto-switching compatibility. Features 60-minute auto shut-off for safety, 360 swivel cord, and comes with a heat-resistant silicone mat and protective glove for women who demand professional results at home or on the go
TRAVEL-READY & GIFT WORTHY – Style anywhere with 100-240V dual voltage worldwide compatibility. Features a 60-minute auto shut-off for peace of mind and a 360° swivel cord. Comes with a heat-resistant silicone mat and glove, making it the perfect upgrade for your beauty routine
