Side Effects and the Copper Uglies Explained GHK-Cu has a strong safety profile in topical research, but a small subset of users experience a transient phase known as the copper uglies. A 2023 clinical safety review covering 12 studies and 512 participants reported that the most common side effects of topical GHK-Cu were transient and mild
Quick Answer: Yes, glutathione can cause skin rashes in some individuals, typically as a result of an allergic reaction or a temporary sensitivity during the detoxification process
When levels are chronically low, the shift tends to be gradual rather than dramatic
Using your daily skincare creams or gels is fine, but if you begin taking glutathione tablets, you will not need to use skin brightening gels or creams
doi: 10.1186/1471-2172-13-2 52 BakheetSAAnsariMANadeemAAttiaSMAlhoshaniARGulGet al
As evident from Figures 2A,B, the colon length of mice with DSS-induced colitis was notably shorter than that of the Control group