Sereniten Plus

Sereniten Plus is a unique combination of clinically studied Lactium® casein decapeptide, L-theanine, and vitamin D to support the hypothalamic-pituitary-adrenal (HPA) axis and feedback loop. This formula supports stress management, cortisol regulation, and stress-related metabolic functions.‡
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC and are used with permission. Copyright © 2026.
*FDA Disclaimer: The information about this product and statements made are provided by the manufacturer, except customer reviews which are not evaluated. See www.douglaslabs.com for information about the relationship between this product and any claims made. Results may vary from person to person based on body size and other factors, and the effectiveness is not guaranteed for you. Always seek the advice of your healthcare professional about taking dietary, nutritional, herbal or homeopathic supplements.
Supplement Facts
| Amount Per Serving | |
| [Co-formulated by Penny Kendall-Reed, N.D.]+ | |
| Serving Size 1 Vegetarian Capsule | |
| Vitamin D₃ (as cholecalciferol) | 2.5 mcg (100 IU) |
| Lactium® Casein Decapeptide (containing a bioactive decapeptide) | 175 mg |
| L-Theanine (Suntheanine®) | 50 mg |
| Other ingredients: Microcrystalline cellulose, hydroxypropyl methylcellulose (capsule) and silica | |
| Contains: Milk | |
| Lactium® is a registered trademark used under license. | |
| Suntheanine® is a registered trademark of Taiyo International Inc. | |
| +Dr. Penny Kendall-Reed is a retained advisor to Atrium Professional Brands. | |
Sereniten Plus is a unique combination of clinically studied Lactium® casein decapeptide, L-theanine, and vitamin D to support the hypothalamic-pituitary-adrenal (HPA) axis and feedback loop. This formula supports stress management, cortisol regulation, and stress-related metabolic functions.‡
Douglas Laboratories' logo, text, trademarks, graphics, and photo images are the property of Douglas Laboratories, LLC and are used with permission. Copyright © 2026.
*FDA Disclaimer: The information about this product and statements made are provided by the manufacturer, except customer reviews which are not evaluated. See www.douglaslabs.com for information about the relationship between this product and any claims made. Results may vary from person to person based on body size and other factors, and the effectiveness is not guaranteed for you. Always seek the advice of your healthcare professional about taking dietary, nutritional, herbal or homeopathic supplements.
Supplement Facts
| Amount Per Serving | |
| [Co-formulated by Penny Kendall-Reed, N.D.]+ | |
| Serving Size 1 Vegetarian Capsule | |
| Vitamin D₃ (as cholecalciferol) | 2.5 mcg (100 IU) |
| Lactium® Casein Decapeptide (containing a bioactive decapeptide) | 175 mg |
| L-Theanine (Suntheanine®) | 50 mg |
| Other ingredients: Microcrystalline cellulose, hydroxypropyl methylcellulose (capsule) and silica | |
| Contains: Milk | |
| Lactium® is a registered trademark used under license. | |
| Suntheanine® is a registered trademark of Taiyo International Inc. | |
| +Dr. Penny Kendall-Reed is a retained advisor to Atrium Professional Brands. | |