Here's a breakdown of the purported benefits of Semax:
1. Cognitive enhancement
Improved Attention and Memory: Studies in both animals and humans have shown that Semax can improve attention and memory, potentially helping with focus, retention, and learning ability, particularly under demanding or stressful conditions.
Faster Learning: Animal studies suggest Semax can decrease the time it takes to learn new tasks.
Potential for ADHD: Some research indicates that Semax might have therapeutic potential for Attention-Deficit/Hyperactivity Disorder by influencing brain development. 
2. Neuroprotection
Protection against Oxidative Damage and Stress: Semax has been shown to protect the brain and body from various types of oxidative stress, according to chiropractorsouthelgin.net.
Support for Brain Health: It may help protect neurons from damage caused by factors like stress, aging, and environmental influences.
Neurogenesis: Semax can promote the growth of new neurons and synapses, which are crucial for learning and memory formation.
Recovery from Brain Injuries: It has been studied for its potential role in aiding recovery from conditions like stroke and traumatic brain injury, according to RevitalyzeMD.
Increased Cerebral Blood Flow: Semax can improve blood supply to the brain, which is beneficial in situations where blood flow is compromised. 
3. Mood and emotional well-being
Mood Improvement and Stability: By modulating neurotransmitters like serotonin and dopamine, Semax may contribute to improved mood, motivation, and emotional stability, notes Swolverine.
Reduced Anxiety and Depression: Some studies have indicated that Semax may have antidepressant and anxiolytic properties.
Better Stress Response: It might help individuals cope with stress more effectively. 
4. Other potential benefits
Immune System Support: Semax has been studied for its potential to boost the immune system.
Fatigue Resistance: It has been used by individuals in high-stress professions to maintain cognitive performance under demanding conditions like sleep deprivation or sensory overload.