Supporting Research

Independent, peer-reviewed studies that align with Gregory Landsman’s focus on stress reduction, skin health, menopause, and holistic self-care.

Stress disrupts the skin barrier
Denda, M., Tsuchiya, T., Elias, P. M., Feingold, K. R. (2000). Stress alters cutaneous permeability barrier homeostasis.
American Journal of Physiology – Regulatory, Integrative and Comparative Physiology, 278(2), R367–R372.
PubMed PMID: 10666139
Cortisol and inflammation in the skin
Arck, P. C., Slominski, A., Theoharides, T. C., Peters, E. M., Paus, R. (2006). Neuroimmunology of stress: skin takes center stage.
Journal of Investigative Dermatology, 126(8), 1697–1704.
DOI: 10.1038/sj.jid.5700104
Acute stress impairs hydration and recovery
Garg, A., Chren, M. M., Sands, L. P., et al. (2001). Psychological stress perturbs epidermal permeability barrier homeostasis.
Archives of Dermatology, 137(1), 53–59.
PubMed PMID: 11176661

Estrogen decline reduces collagen, elasticity, and moisture
Brincat, M. P. (2000). Hormone replacement therapy and the skin.
Maturitas, 35(2), 107–117.
DOI: 10.1016/S0378-5122(00)00119-1
Hypoestrogenism linked to barrier changes
Farage, M. A., Miller, K. W., Elsner, P., Maibach, H. I. (2008). Intrinsic and extrinsic factors in skin ageing: a review.
International Journal of Cosmetic Science, 30(2), 87–95.
DOI: 10.1111/j.1468-2494.2007.00415.x

Breathwork lowers stress and anxiety
Ma, X., Yue, Z. Q., Gong, Z. Q., et al. (2017). The Effect of Diaphragmatic Breathing on Attention, Negative Affect and Stress in Healthy Adults.
Frontiers in Psychology, 8:874.
DOI: 10.3389/fpsyg.2017.00874
Facial massage increases circulation and relaxation
Lee, D., et al. (2018). Effects of facial massage on the facial skin blood flow and relaxation.
Biomedical Dermatology, 2(1), 1–7.
DOI: 10.1186/s41702-018-0012-0

Antioxidants (Vitamin C + E) protect against UV damage
Lin, J. Y., Selim, M. A., Shea, C. R., et al. (2003). UV photoprotection by combination topical antioxidants vitamin C and vitamin E.
Journal of the American Academy of Dermatology, 48(6), 866–874.
DOI: 10.1067/mjd.2003.425
Collagen breakdown drives skin aging
Varani, J., et al. (2006). Decreased collagen production in chronologically aged skin: roles of fibroblast function and mechanical stimulation.
American Journal of Pathology, 168(6), 1861–1868.
DOI: 10.2353/ajpath.2006.051302
Omega-3 fatty acids calm inflammation
Pilkington, S. M., Bulfone-Paus, S., Griffiths, C. E. M., Watson, R. E. B. (2011). Omega-3 polyunsaturated fatty acids: photoprotective macronutrients.
Experimental Dermatology, 20(7), 537–543.
DOI: 10.1111/j.1600-0625.2011.01265.x