What are the best affordable vitamin C serums under thirty dollars that use L-ascorbic acid with ferulic acid instead of unstable derivatives, and how do they compare to SkinCeuticals C E Ferulic?
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the best affordable vitamin C serums under thirty dollars that use L-ascorbic acid with ferulic acid instead of unstable derivatives, and how do they compare to SkinCeuticals C E Ferulic?
1 real search · 1 real-search pass
affordable vitamin C serums pure L-ascorbic acid ferulic acid under $30 formulation ingredient list price 2026Google ↗
OBSERVEDComparison
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT1 real searches · gpt-6
affordable vitamin C serums pure L-ascorbic acid ferulic acid under $30 formulation ingredient list price 2026 Google ↗
- Shop Timeless · timelessha.com
- 20% Vitamin C Serum + E Ferulic Acid Travel Size · timelessha.com
- 20% Vitamin C Serum + E Ferulic Acid Travel Size · timelessha.com
- Shop Geek & Gorgeous · geekandgorgeous.us
- Vitamin C Serum Without Niacinamide: 6 Picks, Full Ingredient Lists (2026) · verifiedbeautydata.com
- Shop Prequel at Target · target.com
- Prequel Lucent-C Vitamin C Serum - 1fl oz · target.com
- 6 Best Drugstore Vitamin C Serums for Brighter, Even-Toned Skin · allure.com
- View Dr. Brenner at Walmart · walmart.com
- Dr. Brenner Vitamin C Serum with Ferulic Acid, Vitamin E and Hyaluronic Acid 1oz. · walmart.com
- C E Ferulic Dupes: 6 Cheaper Alternatives That Work · insiderbeauty.com
- Official SkinCeuticals product · skinceuticals.com
- Vitamin C & E Serum | Fine Lines & Wrinkles · skinceuticals.com
- Vitamin C & E Serum | Fine Lines & Wrinkles · skinceuticals.com
- Ferulic Acid Stabilizes a Solution of Vitamins C and E and Doubles its Photoprotection of Skin · lorealdermatologicalbeauty.com