DC Breath Freshener Review
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Study, Trial or Testing Result Summary
Members OnlyHuman studies
This product is a breath freshener with parsley seed oil at 300 milligrams per serving, carried in sunflower seed oil. We found no human studies testing parsley seed oil for reversing aging, for repairing cells or DNA, or for any marker of biological aging. With no studies, there is no studied dose to compare this product against. Sunflower seed oil appears to serve as the carrier oil, and no findings on it for this goal were given. The product has a large number of customer ratings, and most are positive. However, no written reviews could be read, so we do not know what buyers were rating. For a breath freshener, positive ratings most likely reflect fresher breath rather than any effect on aging, and they cannot stand in for research on this goal. In short, there is no research showing this product helps reverse aging or support cell and DNA repair, and members looking for that benefit should not expect it from this product. Animal and cell studies are never counted.
Review Totals and Summary
Members Only10,000 reviews · 90% positive
Extensive customer reviews and qualitative feedback are currently being aggregated for this product. Check back soon for a detailed sentiment analysis.
Biohacker Summary
Members Only0 of 10 recommend it
Our biohacker panel has not discussed this product’s ingredients yet.
RAL Summary
Members OnlyTier 4 for Healthy Aging
Tier 3 needs some study support for this goal, but parsley seed oil has no human studies at all on aging or cellular and DNA repair, so the evidence is thin and the tier should be 4. So it is graded Tier 4, lower than the rules alone gave.
- Emerging: not enough evidence to rank higher yet.
- No human studies on this goal for its ingredients.
More Details
Members OnlyBody systems · Combine with · Possible side effects
Body systems: Digestive system
Combine with: Combine with a healthy diet and lifestyle.
Possible side effects: No major side effects reported.
Supplement Facts
Parsley seed Oil 300 mg · Sunflower Seed Oil 359 mg
| Parsley seed Oil | 300 mg | † |
| Sunflower Seed Oil | 359 mg | † |
Other ingredients: Gelatin, Veg. Glycerin.
Directions: Directions: As a dietary supplement, for adults, take 3 softgels with liquid after each meal.
Label source: NIH label database · Report a label change
Sizes and barcodes: 90 Softgel(s), UPC 0 52301 11290 6 (not checked yet)
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Members OnlyThe highest ranked for the same goal
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Our articles on this subject
- Healthy Aging Tips: A Science-Backed Guide to Living Better for LongerArticle · Mar 17, 2026
- NAD Anti-Aging Supplements: Benefits, Evidence, and How to ChooseArticle · Jun 15, 2026
Graded November 14, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.
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