Correction: Baumann et al. Moldavian Dragonhead Extract: A Natural Collagen-Booster to Target Skin Aging. OBM Geriatrics 2025; 9: 305

Julia Baumann ^* , Eva Bönzli , Franziska Wandrey  , Torsten Grothe  

1. Mibelle Group Biochemistry, 5033 Buchs, Aargau, Switzerland

* Correspondence: Julia Baumann 

Academic Editor: Taihao Quan

Special Issue: Aging of the Human Skin and Its Prevention

Received: June 07, 2026 | Accepted: June 07, 2026 | Published: June 09, 2026

OBM Geriatrics 2026, Volume 10, Issue 2, doi:10.21926/obm.geriatr.2602338

Recommended citation: Baumann J, Bönzli E, Wandrey F, Grothe T. Correction: Baumann et al. Moldavian Dragonhead Extract: A Natural Collagen-Booster to Target Skin Aging. OBM Geriatrics 2025; 9: 305. OBM Geriatrics 2026; 10(2): 338; doi:10.21926/obm.geriatr.2602338.

© 2026 by the authors. This is an open access article distributed under the conditions of the Creative Commons by Attribution License, which permits unrestricted use, distribution, and reproduction in any medium or format, provided the original work is correctly cited.

The authors wish to make the following correction to the paper [1].

Replace:

2.1 Moldavian Dragonhead Extract Preparation

The Moldavian dragonhead extract (hereafter referred to as MDH Nu sd) was prepared as previously described [27], with some modifications. In short, the dry aerial parts of Dracocephalum moldavica L. were extracted with de-ionized water for 1 hour at 85-90°C by percolation. After vacuum concentration, the liquid extract was then spray-dried on 50% maltodextrin as a carrier (DracoBelle™ Nu sd, provided by Mibelle Group Biochemistry, Buchs, Switzerland). This process ensures a content of at least 2.5% of total flavonoid-glucuronides in the extract powder. The detailed nutritional values are found in Table S1.

With:

2.1 Moldavian Dragonhead Extract Preparation

The Moldavian dragonhead extract (hereafter referred to as MDH Nu sd) was prepared as previously described [27], with some modifications. In short, the dry aerial parts of Dracocephalum moldavica L. were extracted with de-ionized water for 1 hour at 85-90°C by percolation. After vacuum concentration, the liquid extract was then spray-dried on 50% maltodextrin as a carrier (DracoBelle™ Nu sd, provided by Mibelle Group Biochemistry, Buchs, Switzerland). This process ensures a content of at least 2.5 mg/g of total flavonoid-glucuronides in the extract powder. The detailed nutritional values are found in Table S1.

Competing Interests

The authors have declared that no competing interests exist.