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Head-to-head evidence comparison — which supplement is right for you?
Panthenol (provitamin B5) vs Sunscreen (SPF): Sunscreen (SPF) has the stronger overall evidence (9 vs 6/10); the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Sunscreen (SPF) wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Too few graded studies
Top outcomes
Verdict
Too few graded studies
Top outcomes
Shared outcomes (1)
Outcomes where both Panthenol (provitamin B5) and Sunscreen (SPF) have evidence — compare verdict strength side-by-side.
Topical cosmetic only. Panthenol/dexpanthenol is used at roughly 1-5% in moisturizers, soothing creams, and after-procedure ointments, applied to the skin as directed. There is no oral, injectable, or systemic dose in this context — oral vitamin B5 is separate. This library does not provide an ingestion protocol.
Any time of day
Leave-on moisturizer or soothing/repair cream containing panthenol (≈1-5%)
Topical OTC. Apply a broad-spectrum SPF 30+ sunscreen daily to sun-exposed skin as the last step of a morning routine, using an adequate amount (about 2 mg/cm² — roughly a nickel-sized dollop for the face, a shot-glass for the body) and reapply every ~2 hours of sun exposure and after swimming/sweating. Mineral (zinc oxide / titanium dioxide) filters are preferred if you're concerned about systemic absorption. There is no oral or systemic dose — it is not ingested. This library does not provide an ingestion protocol.
Morning
Broad-spectrum SPF 30+, applied daily; mineral (zinc oxide/titanium dioxide) if concerned about absorption
Throughout
1-4 weeks
1-2 weeks
Throughout
Throughout
Ongoing (years)
Ongoing
Throughout
A new topical panthenol-containing emollient: Results from two randomized controlled studies assessing its skin moisturization and barrier restoration potential, and the effect on skin microflora.
J Dermatolog Treat (2017) · Rct · n=23
3-week intra-individual RCT (n=23): a panthenol-containing emollient vs control on SDS-challenged skin
Dexpanthenol enhances skin barrier repair and reduces inflammation after sodium lauryl sulphate-induced irritation.
J Dermatolog Treat (2002) · Rct
In an SLS-irritation model, dexpanthenol cream twice daily accelerated barrier repair significantly more than vehicle or untreated skin
Accelerated wound healing with a dexpanthenol-containing ointment after fractional ablative CO2 laser resurfacing of photo-damaged skin in a randomized prospective clinical trial.
Cutan Ocul Toxicol (2019) · Rct · n=38
Split-area trial (n=38) after fractional CO2 laser: dexpanthenol ointment vs petroleum jelly
Sunscreen and prevention of skin aging: a randomized trial.
Ann Intern Med (2013) · Rct · n=903
Randomized community trial (n=903): the daily sunscreen group showed no detectable increase in photoaging (skin microtopography) after 4.5 years
Molecular mechanisms of photoaging and its prevention by retinoic acid: ultraviolet irradiation induces MAP kinase signal transduction cascades that induce Ap-1-regulated matrix metalloproteinases that degrade human skin in vivo.
J Investig Dermatol Symp Proc (1998) · Review
Mechanistic model: UV activates MAP-kinase pathways and AP-1, which upregulate matrix metalloproteinases (MMPs)
Daily Use of a Facial Broad Spectrum Sunscreen Over One-Year Significantly Improves Clinical Evaluation of Photoaging.
Dermatol Surg (2016) · Open label · n=32
Single-arm prospective study (n=32): broad-spectrum SPF 30 applied daily to the face for 52 weeks
Sunscreen (SPF) has a higher evidence score (9/10 vs 6/10) and wins in 2 of 3 categories.
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.