FDA Warning Letter Explorer
Medical Devices · Aug 25, 2026

Advance-Esthetic LLC

4 extracted findings · 1 model-assigned issue type

FDA source excerpt, selected passage

our inspection revealed that the Zemits CrystalFrax Pro, Zemits Abigon Pro and Zemits Bionexis Lite Pro are adulterated under section 501(f)(1)(B) of the Act, 21 U.S.C. § 351(f)(1)(B), because your firm does not have an approved application for premarket approval (PMA) in effect pursuant to section 515(a) of the Act…

Findings and supporting evidence

Model-assisted readings, not an exhaustive interpretation. Compare with the extracted source findings below.

Registration, listing & premarket21 CFR 807.81(b) 21 CFR 890.5660 21 CFR 890.9(a)-(b) 21 CFR 890.9(b) 21 CFR 890.9(a) 21 CFR 807.81(a)(3)(i)

Devices were marketed without required premarket approval or investigational device exemption, making them adulterated.

Supporting FDA text
Source excerpt · automated text-match check

our inspection revealed that the Zemits CrystalFrax Pro, Zemits Abigon Pro and Zemits Bionexis Lite Pro are adulterated under section 501(f)(1)(B) of the Act, 21 U.S.C. § 351(f)(1)(B), because your firm does not have an approved application for premarket approval (PMA) in effect pursuant to section 515(a) of the Act, 21 U.S.C. § 360e(a), or an approved application for an investigational device exemption under section 520(g) of the Act, 21 U.S.C. § 360j(g) for the device as described and marketed.

Registration, listing & premarket21 CFR 807.81(b)

Devices were misbranded because the firm failed to submit required premarket notification under section 510(k).

Supporting FDA text
Source excerpt · automated text-match check

The Zemits CrystalFrax Pro, Zemits Abigon Pro, and Zemits Bionexis Lite Pro are also misbranded under section 502(o) of the Act, 21 U.S.C. § 352(o), because your firm did not notify the agency of its intent to introduce the device into commercial distribution, as required by section 510(k) of the Act, 21 U.S.C. § 360(k).

Registration, listing & premarket21 CFR 890.9(b)

Devices exceeded exemption limitations by using radiofrequency and light-based technology, a different fundamental scientific technology.

Supporting FDA text
Source excerpt · automated text-match check

Because your devices operate using a different fundamental scientific technology than legally marketed devices in the generic type of devices of therapeutic massagers regulated under 21 CFR 890.5660, these devices exceed the limitations described in 21 CFR 890.9(b) and are not exempt from premarket notification requirements.

Registration, listing & premarket21 CFR 890.9(a)

Devices exceeded exemption limitations because their intended uses differ from those of legally marketed therapeutic massagers.

Supporting FDA text
Source excerpt · automated text-match check

Because your devices are for different intended uses than legally marketed devices in that generic type of devices of therapeutic massagers regulated under 890.5660, the devices exceed the limitations described in 21 CFR 890.9(a) and are not exempt from premarket notification requirements.

Findings extracted from the letter

Selected FDA passages, not the complete letter.

01
our inspection revealed that the Zemits CrystalFrax Pro, Zemits Abigon Pro and Zemits Bionexis Lite Pro are adulterated under section 501(f)(1)(B) of the Act, 21 U.S.C. § 351(f)(1)(B), because your firm does not have an approved application for premarket approval (PMA) in effect pursuant to section 515(a) of the Act, 21 U.S.C. § 360e(a), or an approved application for an investigational device exemption under section 520(g) of the Act, 21 U.S.C. § 360j(g) for the device as described and marketed.

Source passage selected by the model

02
The Zemits CrystalFrax Pro, Zemits Abigon Pro, and Zemits Bionexis Lite Pro are also misbranded under section 502(o) of the Act, 21 U.S.C. § 352(o), because your firm did not notify the agency of its intent to introduce the device into commercial distribution, as required by section 510(k) of the Act, 21 U.S.C. § 360(k).

Source passage selected by the model

03
Because your devices operate using a different fundamental scientific technology than legally marketed devices in the generic type of devices of therapeutic massagers regulated under 21 CFR 890.5660, these devices exceed the limitations described in 21 CFR 890.9(b) and are not exempt from premarket notification requirements.

Source passage selected by the model

04
Because your devices are for different intended uses than legally marketed devices in that generic type of devices of therapeutic massagers regulated under 890.5660, the devices exceed the limitations described in 21 CFR 890.9(a) and are not exempt from premarket notification requirements.

Source passage selected by the model

What FDA requested

Model-assisted summary. Consult the letter for complete requests and conditions.

  • Provide specific steps taken to address the noted violations and an explanation of how the firm plans to prevent these violations or similar violations from occurring again.
  • Include documentation of corrections and/or corrective actions that address systemic problems.
  • Provide a timetable for implementation of planned corrections and corrective actions if they will occur over time.
  • If corrections cannot be completed within fifteen business days, state the reason for the delay and the time within which these activities will be completed.
  • If the firm believes the products are not in violation, include reasoning and supporting information for consideration.

Sections and clauses cited

As cited in this historical letter, not a statement of current regulatory requirements.

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