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post studies until then its a meme@CarlSagan96 since I learned about skin deterioration from sun in April
https://www.ncbi.nlm.nih.gov/pubmed/23732711#
Ann Intern Med. 2013 Jun 4;158(11):781-90. doi: 10.7326/0003-4819-158-11-201306040-00002.
Sunscreen and prevention of skin aging: a randomized trial.
Hughes MC1, Williams GM, Baker P, Green AC.
BACKGROUND:
Sunscreen use and dietary antioxidants are advocated as preventives of skin aging, but supporting evidence is lacking.
OBJECTIVE:
To determine whether regular use of sunscreen compared with discretionary use or β-carotene supplements compared with placebo retard skin aging, measured by degree of photoaging.
DESIGN:
Randomized, controlled, community-based intervention. (Australian New Zealand Clinical Trials Registry: ACTRN12610000086066).
PATIENTS:
903 adults younger than 55 years out of 1621 adults randomly selected from a community register.
INTERVENTION:
Random assignment into 4 groups:
- daily use of broad-spectrum sunscreen and 30 mg of β-carotene
- daily use of sunscreen and placebo
- discretionary use of sunscreen and 30 mg of β-carotene
- discretionary use of sunscreen and placebo.
MEASUREMENTS:
Change in microtopography between 1992 and 1996 in the sunscreen and β-carotene groups compared with controls, graded by assessors blinded to treatment allocation.
RESULTS:
- The daily sunscreen group showed no detectable increase in skin aging after 4.5 years.
- Skin aging from baseline to the end of the trial was 24% less in the daily sunscreen group than in the discretionary sunscreen group (relative odds, 0.76 [95% CI, 0.59 to 0.98]).
- β-Carotene supplementation had no overall effect on skin aging, although contrasting associations were seen in subgroups with different severity of aging at baseline.
CONCLUSION:
Regular sunscreen use retards skin aging in healthy, middle-aged men and women. No overall effect of β-carotene on skin aging was identified, and further study is required to definitively exclude potential benefit or potential harm.