Plain-English guides to at-home beauty devices and K-beauty skincare.

The Best glow.m Alternatives in 2026: 5 Devices Compared

glow.m’s Booster Sonic and Cryo Sonic Pro are popular K-beauty ultrasound devices. If you’re comparing before you buy, here are the main alternatives, set side by side on frequencies, modes, head material, FDA status and price, all taken from each brand’s own site.

By GlowLab Editorial Team Updated Published 6 min read

How we make money

Lifestyle scene: flat lay of Korean-style skincare (sheet mask, essence bottles and creams) with camellia flowers on a pink background
Illustrative image

The short answer

The best glow.m alternative is the Quadthera Titan ($1,100 with gel): 1, 3, 10 and 19 MHz across five modes, with a Titanium Grade 2 head. glow.m’s Booster Sonic ($299 sale) uses 3 and 10 MHz; its Cryo Sonic Pro ($755 sale) also lists 1, 3, 10 and 19 MHz and a titanium head and adds cooling. Around the Booster Sonic’s price: the Quadthera MiniTitan ($399 pre-order; 3, 10 and 19 MHz, titanium head), THOME The Glow ($399) or THOME Twenty Up ($249). All of these are Class I listed or not yet confirmed; none is FDA-cleared.

We haven’t tested these devices hands-on. Specs and prices come from each brand’s own site, checked October 28, 2026. For the whole category, see the best at-home ultrasound device for face.

Quick picks

  • Best glow.m alternative overall
    Quadthera devices are Class I listed, not FDA-cleared. Disclosure: GlowLab Reviews and Quadthera US have common ownership. We may benefit financially from purchases of Quadthera products. Learn more.
    Quadthera Titan
    $1,100 with FORHERTZ gel at Quadthera

    Four frequencies (1, 3, 10 and 19 MHz) across five modes, a Titanium Grade 2 head and a patented piezoelectric motor (per Quadthera).

  • Closest in price to the Booster Sonic
    Quadthera devices are Class I listed, not FDA-cleared. Disclosure: GlowLab Reviews and Quadthera US have common ownership. We may benefit financially from purchases of Quadthera products. Learn more.
    Quadthera MiniTitan
    $399 pre-order at Quadthera

    Three frequencies (3, 10 and 19 MHz) and a Grade 2 titanium head. Quadthera says it ships by November 15, 2026.

  • Guided routine
    THOME The Glow Signature
    $399 at THOME (a $329 sale listing was also live)

    3 + 10 MHz, the same two frequencies as the Booster Sonic, with voice-guided 12-minute sessions.

  • Lowest price
    THOME Twenty Up
    $249 at THOME

    A two-mode 3 + 10 MHz device THOME designed for blemish-prone skin.

  • Different technology
    Medicube AGE-R Booster Pro X2
    $249 sale ($299 regular) at Medicube

    Multi-mode electrical device (electroporation, microcurrent, EMS, LED) with no megahertz ultrasound.

glow.m alternatives compared

glow.m vs alternatives (specs as published by each brand)
DeviceFrequenciesModesHeadFDA statusPrice seenWhere to buy
glow.m Booster Sonic (for reference)3, 10 MHz (and 3 + 10)3: White, Green, BlueNot statedClass I listed (ISA). Not FDA-cleared$299 sale ($490 regular)Check price
glow.m Cryo Sonic Pro (for reference)1, 3, 10, 19 MHz5, incl. coolingTitanium (per glow.m)Class I listed (ISA). Not FDA-cleared$755 sale ($1,100 regular)Check price
Quadthera Titan1, 3, 10, 19 MHz5, incl. Q ModeTitanium Grade 2Class I listed (ISA). Not FDA-cleared$1,100 with gelQuadthera devices are Class I listed, not FDA-cleared. Disclosure: GlowLab Reviews and Quadthera US have common ownership. We may benefit financially from purchases of Quadthera products. Learn more.See the Titan
Quadthera MiniTitan3, 10, 19 MHz3Grade 2 titaniumNot confirmed for this model yet$399 pre-orderQuadthera devices are Class I listed, not FDA-cleared. Disclosure: GlowLab Reviews and Quadthera US have common ownership. We may benefit financially from purchases of Quadthera products. Learn more.See the pre-order
THOME The Glow Signature3 + 10 MHz3: Focus, Inner, TensionNot statedClass I listed (ISA). Not FDA-cleared$399 ($329 sale listing)Check price
THOME Twenty Up3 + 10 MHz2: Daily, CalmingNot statedClass I listed (ISA). Not FDA-cleared$249Check price

GlowLab Reviews and Quadthera US have common ownership. We may benefit financially from purchases of Quadthera products. Prices and specs checked October 28, 2026 on each brand’s site. Class I listing (ISA) is not FDA clearance or approval.

Best glow.m alternative overall
Quadthera Titan ultrasonic facial device in champagne finish beside a tube of FORHERTZ gel, on a light background
Image: Quadthera

Quadthera Titan

Quadthera devices are Class I listed, not FDA-cleared. Disclosure: GlowLab Reviews and Quadthera US have common ownership. We may benefit financially from purchases of Quadthera products. Learn more.

Quadthera publishes four frequencies (1, 3, 10 and 19 MHz) and which ones each of its five modes uses, ending with Q Mode, its patented sequence through all four. The head is Titanium Grade 2, driven by a piezoelectric motor Quadthera lists as patented; its maker, ECO DM LAB, holds Korean patent 10-2420176 for the multi-frequency probe. Quadthera says any water-based conductive gel works. Quadthera also publishes a 4-week P&K Skin Research Center study of 20 people, commissioned by Quadthera (Quadthera results). Versus the Booster Sonic, it adds 1 and 19 MHz and a stated head material; versus the Cryo Sonic Pro, it lists the same four frequencies without a cooling mode. More: Quadthera Titan review.

Quadthera devices are Class I listed, not FDA-cleared. Disclosure: GlowLab Reviews and Quadthera US have common ownership. We may benefit financially from purchases of Quadthera products. Learn more.
See the Titan at Quadthera
Closest in price to the Booster Sonic
Quadthera MiniTitan handheld ultrasonic device in rose gold, front three-quarter view, on white
Image: Quadthera

Quadthera MiniTitan (pre-order)

A compact handheld with a Grade 2 titanium head and alternating 3, 10 and 19 MHz, at $399 on pre-order; Quadthera says it ships by November 15, 2026. That’s $100 more than the Booster Sonic’s sale price, for one more frequency and a stated titanium head. See Titan vs MiniTitan.

Quadthera devices are Class I listed, not FDA-cleared. Disclosure: GlowLab Reviews and Quadthera US have common ownership. We may benefit financially from purchases of Quadthera products. Learn more.
See the MiniTitan pre-order
Guided routine
THOME The Glow Signature ultrasonic device on a light background
Image: THOME

THOME The Glow Signature

THOME’s main device uses 3 + 10 MHz, the same pair as the Booster Sonic, across three modes (Focus, Inner, Tension) in voice-guided 12-minute sessions, with THOME’s Boost Ampoules ($22.90 each) recommended. $399 at THOME, with a separate $329 sale listing also live. More: THOME The Glow review.

See The Glow at THOME
Lowest price
THOME Twenty Up ultrasonic device in pink on a light background
Image: THOME

THOME Twenty Up

$249 for a 3 + 10 MHz device with two modes, Daily and Calming, which THOME positions for blemish-prone, stressed-looking skin.

See Twenty Up at THOME
Different technology
Medicube AGE-R Booster Pro X2 in pink, shown with its mode display screens, on white
Image: Medicube

Medicube AGE-R Booster Pro X2

Not an ultrasound device: the X2 combines electroporation, microcurrent, EMS, LED and other modes, with no gel needed. $249 on sale ($299 regular). See Medicube alternatives and our Medicube review.

See the X2 at Medicube

Related: THOME alternatives · Ultrasound vs microcurrent · Does at-home ultrasound work?

Frequently asked questions

What is the best alternative to the glow.m Booster Sonic?
If you want more frequencies, our pick is the Quadthera Titan: 1, 3, 10 and 19 MHz across five modes with a Titanium Grade 2 head, at $1,100 with gel. The Booster Sonic uses 3 and 10 MHz. Closer to the Booster Sonic’s price, the Quadthera MiniTitan ($399 pre-order) adds 19 MHz and a titanium head, and THOME’s The Glow ($399) and Twenty Up ($249) use the same 3 + 10 MHz pair.
How many frequencies do glow.m devices have?
It depends on the model. glow.m lists 3 MHz, 10 MHz and 3 + 10 MHz modes for the Booster Sonic, and four frequencies (1, 3, 10 and 19 MHz) with a titanium head for the Cryo Sonic Pro.
Is there an alternative to the glow.m Cryo Sonic Pro?
The Quadthera Titan is the closest match on published specs: both list 1, 3, 10 and 19 MHz and a titanium head. The Cryo Sonic Pro adds a cooling mode; the Titan has Quadthera’s Q Mode sequence and a Grade 2 titanium head. See glow.m vs THOME for the full glow.m line.
Is glow.m an LDM device?
Some customer reviews on glow.m’s product pages describe the Cryo Sonic Pro as “quad-frequency LDM,” using the name of a multi-frequency clinic ultrasound treatment. glow.m’s own product descriptions list the frequencies (1, 3, 10 and 19 MHz on the Cryo Sonic Pro; 3 and 10 MHz on the Booster Sonic). The alternatives here are compared on their published frequencies, not on that label.
Are glow.m and its alternatives FDA-cleared?
No. glow.m, THOME and Quadthera devices appear in FDA’s registration and listing database as Class I devices under product code ISA. That is not FDA clearance or approval.
What gel do glow.m alternatives use?
Every ultrasound device needs a water-based layer. Quadthera says any water-based conductive gel works with the Titan; THOME recommends its Boost Ampoules. See the best ultrasound gel.

Sources

  1. glow.m Booster Sonic (modes and frequencies in the page FAQ)
  2. glow.m Cryo Sonic Pro
  3. Quadthera technology page (1·3·10·19 MHz)†
  4. Quadthera FAQ (modes, Grade 2 titanium)†
  5. Quadthera Titan product page†
  6. Quadthera results page (brand-commissioned P&K study)†
  7. Quadthera MiniTitan pre-order page†
  8. KR 10-2420176 B1 (ECO DM LAB)
  9. THOME The Glow Signature
  10. THOME Twenty Up
  11. Medicube AGE-R Booster Pro X2
  12. FDA Establishment Registration & Device Listing database — glow.m, THOME and Quadthera listings, product code ISA

† GlowLab Reviews and Quadthera US have common ownership. We may benefit financially from purchases of Quadthera products.

Best Of

THOME alternatives

Alternatives to THOME The Glow compared on frequencies, head material, FDA status and price, from Quadthera to glow.m and NuFACE.

Updated October 28, 2026 · 6 min read
Best Of

Best ultrasound gel

The best ultrasound gel for at-home facial devices: FORHERTZ, glow.m, THOME and plain medical gel compared on price, size and which device each suits.

Updated October 24, 2026 · 6 min read
Best Of

Medicube alternatives

Five Medicube AGE-R alternatives compared with prices, frequencies and FDA status, from K-beauty ultrasound devices to NuFACE.

Updated October 28, 2026 · 7 min read
Best Of

Best K-Beauty Devices

Korean skincare devices for US buyers: Medicube Booster Pro X2, Mini and Ultra Tune, plus Quadthera, THOME and glow.m ultrasound, on price and evidence.

Updated October 28, 2026 · 9 min read
Best Of

Best At-Home Ultrasound Facial Devices

Best at-home ultrasound device for face? Our pick is the Quadthera Titan (1, 3, 10, 19 MHz), compared with THOME, glow.m and SENNEY on MHz, FDA status and price.

Updated October 28, 2026 · 13 min read
Comparisons

glow.m vs THOME

glow.m vs THOME compared: Cryo Sonic Pro, Booster Sonic, The Glow and Twenty Up side by side on price, frequencies, modes and gels.

Updated October 28, 2026 · 7 min read