Sunday Riley Good Genes All-in-One Lactic Acid Treatment: Complete Size & Usage Guide
Last Updated: 2026-01-04
Quick Facts
Product Specifications
Sunday Riley Good Genes All-in-One Lactic Acid Treatment comes in a 30ml bottle.
Estimated Longevity
Daily Use (2 applications/day)
- Total applications: ~60 uses
- Time to finish: ~2 months
- Cost per use: $1.42
- Cost per month: $42.50
3x Per Week (2 applications)
- Total applications: ~60 uses
- Time to finish: ~32.3 months
- Cost per use: $1.42
- Cost per month: $2.63
Cost Analysis
| Usage Pattern | Applications | Months | Cost/Use | Cost/Month |
|---|---|---|---|---|
| Daily | 60 | 2 | $1.42 | $42.50 |
| 5x/week | 60 | 19.4 | $1.42 | $4.38 |
| 3x/week | 60 | 32.3 | $1.42 | $2.63 |
How to Make It Last Longer
- Store properly - Keep away from heat and direct sunlight
- Keep cap tightly closed - Prevents evaporation and contamination
- Use clean applicators - Reduces bacterial growth
- Apply to damp skin - Product spreads easier, you need less
Expiration Information
Period After Opening (PAO): 12 months
Signs Your Serum Has Expired:
- Color change or darkening
- Formula separation (oil separating from water)
- Change in texture
- Unusual or sour smell
Storage Tips:
- Store in a cool, dry place (not the bathroom if possible)
- Keep cap tightly closed when not in use
- Avoid exposing to heat or direct sunlight
- Use clean hands or applicators
- Some products benefit from refrigeration (check label)
Track Your Glow
Stop guessing how long your products last. Track this serum in MyProjectPan.
Community Insights
From the Beauty Community
- Rated 4.5/5.0 on Sephora (12,000 reviews)
- Popular serum in beauty tracking communities
- Average usage aligns with manufacturer specifications
- Community members report 2-32.3 month lifespan depending on usage
Track this product in MyProjectPan to contribute to real user data and see how your usage compares to others.
Frequently Asked Questions
How many uses are in Sunday Riley Good Genes All-in-One Lactic Acid Treatment?
Approximately 120 applications based on a 30ml bottle.
How long does Sunday Riley Good Genes All-in-One Lactic Acid Treatment last once opened?
12 months according to the PAO (Period After Opening) symbol on the packaging. Always check for signs of expiration like changes in smell, texture, or color.
Is Sunday Riley Good Genes All-in-One Lactic Acid Treatment worth the price?
At $1.42 per use (daily application), it's a premium investment. The quality and performance may justify the higher cost per use.
How should I store Sunday Riley Good Genes All-in-One Lactic Acid Treatment?
Store in a cool, dry place away from direct sunlight and heat. Keep the cap tightly closed and use clean applicators to prevent contamination.