| Cover | Nov. 02, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Nov. 2, 2020 |
| Entity File Number | 0-52567 |
| Entity Registrant Name | Lightwave Logic, Inc. |
| Entity Central Index Key | 0001325964 |
| Entity Tax Identification Number | 82-0497368 |
| Entity Incorporation, State or Country Code | NV |
| Entity Address, Address Line One | 369 Inverness Parkway |
| Entity Address, Address Line Two | Suite 350 |
| Entity Address, City or Town | Englewood |
| Entity Address, State or Province | CO |
| Entity Address, Postal Zip Code | 80112 |
| City Area Code | (720) |
| Local Phone Number | 340-4949 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
